mpeg12.o mpegaudiodec.o pcm.o simple_idct.o \
ratecontrol.o adpcm.o eval.o dv.o error_resilience.o \
fft.o mdct.o mace.o huffyuv.o cyuv.o opts.o raw.o h264.o golomb.o \
- vp3.o asv1.o 4xm.o cabac.o ffv1.o ra144.o ra288.o vcr1.o cljr.o
+ vp3.o asv1.o 4xm.o cabac.o ffv1.o ra144.o ra288.o vcr1.o cljr.o \
+ roqvideo.o dpcm.o interplayvideo.o
ifeq ($(AMR_NB),yes)
ifeq ($(AMR_NB_FIXED),yes)
register_avcodec(&cljr_decoder);
register_avcodec(&fourxm_decoder);
register_avcodec(&mdec_decoder);
+ register_avcodec(&roq_decoder);
+ register_avcodec(&interplay_video_decoder);
#ifdef CONFIG_AC3
register_avcodec(&ac3_decoder);
#endif
register_avcodec(&ra_144_decoder);
register_avcodec(&ra_288_decoder);
+ register_avcodec(&roq_dpcm_decoder);
+ register_avcodec(&interplay_dpcm_decoder);
#endif /* CONFIG_DECODERS */
#ifdef AMR_NB
CODEC_ID_VCR1,
CODEC_ID_CLJR,
CODEC_ID_MDEC,
+ CODEC_ID_ROQ,
+ CODEC_ID_INTERPLAY_VIDEO,
/* various pcm "codecs" */
CODEC_ID_PCM_S16LE,
/* RealAudio codecs*/
CODEC_ID_RA_144,
CODEC_ID_RA_288,
+
+ /* various DPCM codecs */
+ CODEC_ID_ROQ_DPCM,
+ CODEC_ID_INTERPLAY_DPCM,
};
enum CodecType {
extern AVCodec ffv1_decoder;
extern AVCodec fourxm_decoder;
extern AVCodec mdec_decoder;
+extern AVCodec roq_decoder;
+extern AVCodec interplay_video_decoder;
extern AVCodec ra_144_decoder;
extern AVCodec ra_288_decoder;
+extern AVCodec roq_dpcm_decoder;
+extern AVCodec interplay_dpcm_decoder;
/* pcm codecs */
#define PCM_CODEC(id, name) \
--- /dev/null
+/*
+ * Assorted DPCM codecs
+ * Copyright (c) 2003 The ffmpeg Project.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+/**
+ * @file: dpcm.c
+ * Assorted DPCM (differential pulse code modulation) audio codecs
+ * by Mike Melanson (melanson@pcisys.net)
+ * for more information on the specific data formats, visit:
+ * http://www.pcisys.net/~melanson/codecs/simpleaudio.html
+ */
+
+#include "avcodec.h"
+
+typedef struct DPCMContext {
+ int channels;
+ short roq_square_array[256];
+ int last_delta[2];
+} DPCMContext;
+
+#define SATURATE_S16(x) if (x < -32768) x = -32768; \
+ else if (x > 32767) x = 32767;
+#define SE_16BIT(x) if (x & 0x8000) x -= 0x10000;
+#define LE_16(x) ((((uint8_t*)(x))[1] << 8) | ((uint8_t*)(x))[0])
+#define LE_32(x) ((((uint8_t*)(x))[3] << 24) | \
+ (((uint8_t*)(x))[2] << 16) | \
+ (((uint8_t*)(x))[1] << 8) | \
+ ((uint8_t*)(x))[0])
+
+static int interplay_delta_table[] = {
+ 0, 1, 2, 3, 4, 5, 6, 7,
+ 8, 9, 10, 11, 12, 13, 14, 15,
+ 16, 17, 18, 19, 20, 21, 22, 23,
+ 24, 25, 26, 27, 28, 29, 30, 31,
+ 32, 33, 34, 35, 36, 37, 38, 39,
+ 40, 41, 42, 43, 47, 51, 56, 61,
+ 66, 72, 79, 86, 94, 102, 112, 122,
+ 133, 145, 158, 173, 189, 206, 225, 245,
+ 267, 292, 318, 348, 379, 414, 452, 493,
+ 538, 587, 640, 699, 763, 832, 908, 991,
+ 1081, 1180, 1288, 1405, 1534, 1673, 1826, 1993,
+ 2175, 2373, 2590, 2826, 3084, 3365, 3672, 4008,
+ 4373, 4772, 5208, 5683, 6202, 6767, 7385, 8059,
+ 8794, 9597, 10472, 11428, 12471, 13609, 14851, 16206,
+ 17685, 19298, 21060, 22981, 25078, 27367, 29864, 32589,
+ -29973, -26728, -23186, -19322, -15105, -10503, -5481, -1,
+ 1, 1, 5481, 10503, 15105, 19322, 23186, 26728,
+ 29973, -32589, -29864, -27367, -25078, -22981, -21060, -19298,
+ -17685, -16206, -14851, -13609, -12471, -11428, -10472, -9597,
+ -8794, -8059, -7385, -6767, -6202, -5683, -5208, -4772,
+ -4373, -4008, -3672, -3365, -3084, -2826, -2590, -2373,
+ -2175, -1993, -1826, -1673, -1534, -1405, -1288, -1180,
+ -1081, -991, -908, -832, -763, -699, -640, -587,
+ -538, -493, -452, -414, -379, -348, -318, -292,
+ -267, -245, -225, -206, -189, -173, -158, -145,
+ -133, -122, -112, -102, -94, -86, -79, -72,
+ -66, -61, -56, -51, -47, -43, -42, -41,
+ -40, -39, -38, -37, -36, -35, -34, -33,
+ -32, -31, -30, -29, -28, -27, -26, -25,
+ -24, -23, -22, -21, -20, -19, -18, -17,
+ -16, -15, -14, -13, -12, -11, -10, -9,
+ -8, -7, -6, -5, -4, -3, -2, -1
+
+};
+
+static int dpcm_decode_init(AVCodecContext *avctx)
+{
+ DPCMContext *s = avctx->priv_data;
+ int i;
+ short square;
+
+ s->channels = avctx->channels;
+
+ switch(avctx->codec->id) {
+
+ case CODEC_ID_ROQ_DPCM:
+ /* initialize square table */
+ for (i = 0; i < 128; i++) {
+ square = i * i;
+ s->roq_square_array[i] = square;
+ s->roq_square_array[i + 128] = -square;
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+static int dpcm_decode_frame(AVCodecContext *avctx,
+ void *data, int *data_size,
+ uint8_t *buf, int buf_size)
+{
+ DPCMContext *s = avctx->priv_data;
+ int in, out = 0;
+ int i;
+ int predictor[2];
+ int channel_number = 0;
+ short *output_samples = data;
+ int sequence_number;
+
+ switch(avctx->codec->id) {
+
+ case CODEC_ID_ROQ_DPCM:
+ if (s->channels == 1)
+ predictor[0] = LE_16(&buf[6]);
+ else {
+ predictor[0] = buf[7] << 8;
+ predictor[1] = buf[6] << 8;
+ }
+ SE_16BIT(predictor[0]);
+ SE_16BIT(predictor[1]);
+
+ /* decode the samples */
+ for (in = 8, out = 0; in < buf_size; in++, out++) {
+ predictor[channel_number] += s->roq_square_array[buf[in]];
+ SATURATE_S16(predictor[channel_number]);
+ output_samples[out] = predictor[channel_number];
+
+ /* toggle channel */
+ channel_number ^= s->channels - 1;
+ }
+ break;
+
+ case CODEC_ID_INTERPLAY_DPCM:
+ in = 0;
+ sequence_number = LE_16(&buf[in]);
+ in += 6; /* skip over the stream mask and stream length */
+ if (sequence_number == 1) {
+ predictor[0] = LE_16(&buf[in]);
+ in += 2;
+ SE_16BIT(predictor[0])
+ if (s->channels == 2) {
+ predictor[1] = LE_16(&buf[in]);
+ SE_16BIT(predictor[1])
+ in += 2;
+ }
+ } else {
+ for (i = 0; i < s->channels; i++)
+ predictor[i] = s->last_delta[i];
+ }
+
+ while (in < buf_size) {
+ predictor[channel_number] += interplay_delta_table[buf[in++]];
+ SATURATE_S16(predictor[channel_number]);
+ output_samples[out++] = predictor[channel_number];
+
+ /* toggle channel */
+ channel_number ^= s->channels - 1;
+ }
+
+ /* save predictors for next round */
+ for (i = 0; i < s->channels; i++)
+ s->last_delta[i] = predictor[i];
+
+ break;
+ }
+
+ *data_size = out * sizeof(short);
+ return buf_size;
+}
+
+AVCodec roq_dpcm_decoder = {
+ "roq_dpcm",
+ CODEC_TYPE_AUDIO,
+ CODEC_ID_ROQ_DPCM,
+ sizeof(DPCMContext),
+ dpcm_decode_init,
+ NULL,
+ NULL,
+ dpcm_decode_frame,
+};
+
+AVCodec interplay_dpcm_decoder = {
+ "interplay_dpcm",
+ CODEC_TYPE_AUDIO,
+ CODEC_ID_INTERPLAY_DPCM,
+ sizeof(DPCMContext),
+ dpcm_decode_init,
+ NULL,
+ NULL,
+ dpcm_decode_frame,
+};
--- /dev/null
+/*
+ * Interplay MVE Video Decoder
+ * Copyright (C) 2003 the ffmpeg project
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+/**
+ * @file roqvideo.c
+ * Interplay MVE Video Decoder by Mike Melanson
+ * For more information about the Interplay MVE format, visit:
+ * http://www.pcisys.net/~melanson/codecs/
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "common.h"
+#include "avcodec.h"
+#include "dsputil.h"
+
+typedef struct IpvideoContext {
+
+ AVCodecContext *avctx;
+ DSPContext dsp;
+ AVFrame last_frame;
+ AVFrame current_frame;
+ int first_frame;
+ int receiving_decoding_map;
+ unsigned char *decoding_map;
+ int decoding_map_size;
+
+ unsigned char *buf;
+ int size;
+
+} IpvideoContext;
+
+static int ipvideo_decode_init(AVCodecContext *avctx)
+{
+ IpvideoContext *s = avctx->priv_data;
+
+ s->avctx = avctx;
+ avctx->pix_fmt = PIX_FMT_YUV444P;
+ avctx->has_b_frames = 0;
+ dsputil_init(&s->dsp, avctx);
+
+ s->first_frame = 1;
+ s->receiving_decoding_map = 1; /* decoding map will be received first */
+
+ /* decoding map contains 4 bits of information per 8x8 block */
+ s->decoding_map_size = avctx->width * avctx->height / (8 * 8 * 2);
+ s->decoding_map = av_malloc(s->decoding_map_size);
+
+ return 0;
+}
+
+static int ipvideo_decode_frame(AVCodecContext *avctx,
+ void *data, int *data_size,
+ uint8_t *buf, int buf_size)
+{
+ IpvideoContext *s = avctx->priv_data;
+
+ if (s->receiving_decoding_map) {
+ /* receiving the decoding map on this iteration */
+ s->receiving_decoding_map = 0;
+
+ if (buf_size != s->decoding_map_size)
+ printf (" Interplay video: buf_size != decoding_map_size (%d != %d)\n",
+ buf_size, s->decoding_map_size);
+ else
+ memcpy(s->decoding_map, buf, buf_size);
+
+ *data_size = 0;
+ *(AVFrame*)data = s->last_frame;
+ } else {
+ /* receiving the compressed video data on this iteration */
+ s->receiving_decoding_map = 1;
+ s->buf = buf;
+ s->size = buf_size;
+
+ if (avctx->get_buffer(avctx, &s->current_frame)) {
+ printf (" Interplay Video: get_buffer() failed\n");
+ return -1;
+ }
+
+// ipvideo_decode_frame(s);
+memset(s->current_frame.data[0], 0x80, s->current_frame.linesize[0] * avctx->height);
+memset(s->current_frame.data[1], 0x80, s->current_frame.linesize[1] * avctx->height / 4);
+memset(s->current_frame.data[2], 0x80, s->current_frame.linesize[2] * avctx->height / 4);
+
+ /* release the last frame if it is allocated */
+ if (s->first_frame)
+ s->first_frame = 0;
+ else
+ avctx->release_buffer(avctx, &s->last_frame);
+
+ /* shuffle frames */
+ s->last_frame = s->current_frame;
+
+ *data_size = sizeof(AVFrame);
+ *(AVFrame*)data = s->current_frame;
+ }
+
+ /* always report that the buffer was completely consumed */
+ return buf_size;
+}
+
+static int ipvideo_decode_end(AVCodecContext *avctx)
+{
+ IpvideoContext *s = avctx->priv_data;
+
+ /* release the last frame */
+ avctx->release_buffer(avctx, &s->last_frame);
+
+ av_free(s->decoding_map);
+
+ return 0;
+}
+
+AVCodec interplay_video_decoder = {
+ "interplayvideo",
+ CODEC_TYPE_VIDEO,
+ CODEC_ID_INTERPLAY_VIDEO,
+ sizeof(IpvideoContext),
+ ipvideo_decode_init,
+ NULL,
+ ipvideo_decode_end,
+ ipvideo_decode_frame,
+ CODEC_CAP_DR1,
+};
--- /dev/null
+/*
+ * Copyright (C) 2003 the ffmpeg project
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+/**
+ * @file roqvideo.c
+ * Id RoQ Video Decoder by Dr. Tim Ferguson
+ * For more information about the Id RoQ format, visit:
+ * http://www.csse.monash.edu.au/~timf/
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "common.h"
+#include "avcodec.h"
+#include "dsputil.h"
+
+typedef struct {
+ unsigned char y0, y1, y2, y3, u, v;
+} roq_cell;
+
+typedef struct {
+ int idx[4];
+} roq_qcell;
+
+
+typedef struct RoqContext {
+
+ AVCodecContext *avctx;
+ DSPContext dsp;
+ AVFrame last_frame;
+ AVFrame current_frame;
+ int first_frame;
+ int y_stride;
+ int c_stride;
+
+ roq_cell cells[256];
+ roq_qcell qcells[256];
+
+ unsigned char *buf;
+ int size;
+
+} RoqContext;
+
+#define RoQ_INFO 0x1001
+#define RoQ_QUAD_CODEBOOK 0x1002
+#define RoQ_QUAD_VQ 0x1011
+#define RoQ_SOUND_MONO 0x1020
+#define RoQ_SOUND_STEREO 0x1021
+
+#define RoQ_ID_MOT 0x00
+#define RoQ_ID_FCC 0x01
+#define RoQ_ID_SLD 0x02
+#define RoQ_ID_CCC 0x03
+
+#define get_byte(in_buffer) *(in_buffer++)
+#define get_word(in_buffer) ((unsigned short)(in_buffer += 2, \
+ (in_buffer[-1] << 8 | in_buffer[-2])))
+#define get_long(in_buffer) ((unsigned long)(in_buffer += 4, \
+ (in_buffer[-1] << 24 | in_buffer[-2] << 16 | in_buffer[-3] << 8 | in_buffer[-4])))
+
+
+static void apply_vector_2x2(RoqContext *ri, int x, int y, roq_cell *cell)
+{
+ unsigned char *yptr;
+
+ yptr = ri->current_frame.data[0] + (y * ri->y_stride) + x;
+ *yptr++ = cell->y0;
+ *yptr++ = cell->y1;
+ yptr += (ri->y_stride - 2);
+ *yptr++ = cell->y2;
+ *yptr++ = cell->y3;
+ ri->current_frame.data[1][(y/2) * (ri->c_stride) + x/2] = cell->u;
+ ri->current_frame.data[2][(y/2) * (ri->c_stride) + x/2] = cell->v;
+}
+
+static void apply_vector_4x4(RoqContext *ri, int x, int y, roq_cell *cell)
+{
+ unsigned long row_inc, c_row_inc;
+ register unsigned char y0, y1, u, v;
+ unsigned char *yptr, *uptr, *vptr;
+
+ yptr = ri->current_frame.data[0] + (y * ri->y_stride) + x;
+ uptr = ri->current_frame.data[1] + (y/2) * (ri->c_stride) + x/2;
+ vptr = ri->current_frame.data[2] + (y/2) * (ri->c_stride) + x/2;
+
+ row_inc = ri->y_stride - 4;
+ c_row_inc = (ri->c_stride) - 2;
+ *yptr++ = y0 = cell->y0; *uptr++ = u = cell->u; *vptr++ = v = cell->v;
+ *yptr++ = y0;
+ *yptr++ = y1 = cell->y1; *uptr++ = u; *vptr++ = v;
+ *yptr++ = y1;
+
+ yptr += row_inc;
+
+ *yptr++ = y0;
+ *yptr++ = y0;
+ *yptr++ = y1;
+ *yptr++ = y1;
+
+ yptr += row_inc; uptr += c_row_inc; vptr += c_row_inc;
+
+ *yptr++ = y0 = cell->y2; *uptr++ = u; *vptr++ = v;
+ *yptr++ = y0;
+ *yptr++ = y1 = cell->y3; *uptr++ = u; *vptr++ = v;
+ *yptr++ = y1;
+
+ yptr += row_inc;
+
+ *yptr++ = y0;
+ *yptr++ = y0;
+ *yptr++ = y1;
+ *yptr++ = y1;
+}
+
+static void apply_motion_4x4(RoqContext *ri, int x, int y, unsigned char mv,
+ char mean_x, char mean_y)
+{
+ int i, mx, my;
+ unsigned char *pa, *pb;
+
+ mx = x + 8 - (mv >> 4) - mean_x;
+ my = y + 8 - (mv & 0xf) - mean_y;
+
+ pa = ri->current_frame.data[0] + (y * ri->y_stride) + x;
+ pb = ri->last_frame.data[0] + (my * ri->y_stride) + mx;
+ for(i = 0; i < 4; i++) {
+ pa[0] = pb[0];
+ pa[1] = pb[1];
+ pa[2] = pb[2];
+ pa[3] = pb[3];
+ pa += ri->y_stride;
+ pb += ri->y_stride;
+ }
+
+ pa = ri->current_frame.data[1] + (y/2) * (ri->c_stride) + x/2;
+ pb = ri->last_frame.data[1] + (my/2) * (ri->c_stride) + (mx + 1)/2;
+ for(i = 0; i < 2; i++) {
+ pa[0] = pb[0];
+ pa[1] = pb[1];
+ pa += ri->c_stride;
+ pb += ri->c_stride;
+ }
+
+ pa = ri->current_frame.data[2] + (y/2) * (ri->c_stride) + x/2;
+ pb = ri->last_frame.data[2] + (my/2) * (ri->c_stride) + (mx + 1)/2;
+ for(i = 0; i < 2; i++) {
+ pa[0] = pb[0];
+ pa[1] = pb[1];
+ pa += ri->c_stride;
+ pb += ri->c_stride;
+ }
+}
+
+static void apply_motion_8x8(RoqContext *ri, int x, int y,
+ unsigned char mv, char mean_x, char mean_y)
+{
+ int mx, my, i;
+ unsigned char *pa, *pb;
+
+ mx = x + 8 - (mv >> 4) - mean_x;
+ my = y + 8 - (mv & 0xf) - mean_y;
+
+ pa = ri->current_frame.data[0] + (y * ri->y_stride) + x;
+ pb = ri->last_frame.data[0] + (my * ri->y_stride) + mx;
+ for(i = 0; i < 8; i++) {
+ pa[0] = pb[0];
+ pa[1] = pb[1];
+ pa[2] = pb[2];
+ pa[3] = pb[3];
+ pa[4] = pb[4];
+ pa[5] = pb[5];
+ pa[6] = pb[6];
+ pa[7] = pb[7];
+ pa += ri->y_stride;
+ pb += ri->y_stride;
+ }
+
+ pa = ri->current_frame.data[1] + (y/2) * (ri->c_stride) + x/2;
+ pb = ri->last_frame.data[1] + (my/2) * (ri->c_stride) + (mx + 1)/2;
+ for(i = 0; i < 4; i++) {
+ pa[0] = pb[0];
+ pa[1] = pb[1];
+ pa[2] = pb[2];
+ pa[3] = pb[3];
+ pa += ri->c_stride;
+ pb += ri->c_stride;
+ }
+
+ pa = ri->current_frame.data[2] + (y/2) * (ri->c_stride) + x/2;
+ pb = ri->last_frame.data[2] + (my/2) * (ri->c_stride) + (mx + 1)/2;
+ for(i = 0; i < 4; i++) {
+ pa[0] = pb[0];
+ pa[1] = pb[1];
+ pa[2] = pb[2];
+ pa[3] = pb[3];
+ pa += ri->c_stride;
+ pb += ri->c_stride;
+ }
+}
+
+static void roqvideo_decode_frame(RoqContext *ri)
+{
+ unsigned int chunk_id = 0, chunk_arg = 0;
+ unsigned long chunk_size = 0;
+ int i, j, k, nv1, nv2, vqflg = 0, vqflg_pos = -1;
+ int vqid, bpos, xpos, ypos, xp, yp, x, y;
+ int frame_stats[2][4] = {{0},{0}};
+ roq_qcell *qcell;
+ unsigned char *buf = ri->buf;
+ unsigned char *buf_end = ri->buf + ri->size;
+
+ while (buf < buf_end) {
+ chunk_id = get_word(buf);
+ chunk_size = get_long(buf);
+ chunk_arg = get_word(buf);
+
+ if(chunk_id == RoQ_QUAD_VQ)
+ break;
+ if(chunk_id == RoQ_QUAD_CODEBOOK) {
+ if((nv1 = chunk_arg >> 8) == 0)
+ nv1 = 256;
+ if((nv2 = chunk_arg & 0xff) == 0 && nv1 * 6 < chunk_size)
+ nv2 = 256;
+ for(i = 0; i < nv1; i++) {
+ ri->cells[i].y0 = get_byte(buf);
+ ri->cells[i].y1 = get_byte(buf);
+ ri->cells[i].y2 = get_byte(buf);
+ ri->cells[i].y3 = get_byte(buf);
+ ri->cells[i].u = get_byte(buf);
+ ri->cells[i].v = get_byte(buf);
+ }
+ for(i = 0; i < nv2; i++)
+ for(j = 0; j < 4; j++)
+ ri->qcells[i].idx[j] = get_byte(buf);
+ }
+ }
+
+ bpos = xpos = ypos = 0;
+ while(bpos < chunk_size) {
+ for (yp = ypos; yp < ypos + 16; yp += 8)
+ for (xp = xpos; xp < xpos + 16; xp += 8) {
+ if (vqflg_pos < 0) {
+ vqflg = buf[bpos++]; vqflg |= (buf[bpos++] << 8);
+ vqflg_pos = 7;
+ }
+ vqid = (vqflg >> (vqflg_pos * 2)) & 0x3;
+ frame_stats[0][vqid]++;
+ vqflg_pos--;
+
+ switch(vqid) {
+ case RoQ_ID_MOT:
+ apply_motion_8x8(ri, xp, yp, 0, 8, 8);
+ break;
+ case RoQ_ID_FCC:
+ apply_motion_8x8(ri, xp, yp, buf[bpos++], chunk_arg >> 8,
+ chunk_arg & 0xff);
+ break;
+ case RoQ_ID_SLD:
+ qcell = ri->qcells + buf[bpos++];
+ apply_vector_4x4(ri, xp, yp, ri->cells + qcell->idx[0]);
+ apply_vector_4x4(ri, xp+4, yp, ri->cells + qcell->idx[1]);
+ apply_vector_4x4(ri, xp, yp+4, ri->cells + qcell->idx[2]);
+ apply_vector_4x4(ri, xp+4, yp+4, ri->cells + qcell->idx[3]);
+ break;
+ case RoQ_ID_CCC:
+ for (k = 0; k < 4; k++) {
+ x = xp; y = yp;
+ if(k & 0x01) x += 4;
+ if(k & 0x02) y += 4;
+
+ if (vqflg_pos < 0) {
+ vqflg = buf[bpos++];
+ vqflg |= (buf[bpos++] << 8);
+ vqflg_pos = 7;
+ }
+ vqid = (vqflg >> (vqflg_pos * 2)) & 0x3;
+ frame_stats[1][vqid]++;
+ vqflg_pos--;
+ switch(vqid) {
+ case RoQ_ID_MOT:
+ apply_motion_4x4(ri, x, y, 0, 8, 8);
+ break;
+ case RoQ_ID_FCC:
+ apply_motion_4x4(ri, x, y, buf[bpos++],
+ chunk_arg >> 8, chunk_arg & 0xff);
+ break;
+ case RoQ_ID_SLD:
+ qcell = ri->qcells + buf[bpos++];
+ apply_vector_2x2(ri, x, y, ri->cells + qcell->idx[0]);
+ apply_vector_2x2(ri, x+2, y, ri->cells + qcell->idx[1]);
+ apply_vector_2x2(ri, x, y+2, ri->cells + qcell->idx[2]);
+ apply_vector_2x2(ri, x+2, y+2, ri->cells + qcell->idx[3]);
+ break;
+ case RoQ_ID_CCC:
+ apply_vector_2x2(ri, x, y, ri->cells + buf[bpos]);
+ apply_vector_2x2(ri, x+2, y, ri->cells + buf[bpos+1]);
+ apply_vector_2x2(ri, x, y+2, ri->cells + buf[bpos+2]);
+ apply_vector_2x2(ri, x+2, y+2, ri->cells + buf[bpos+3]);
+ bpos += 4;
+ break;
+ }
+ }
+ break;
+ default:
+ printf("Unknown vq code: %d\n", vqid);
+ }
+ }
+
+ xpos += 16;
+ if (xpos >= ri->avctx->width) {
+ xpos -= ri->avctx->width;
+ ypos += 16;
+ }
+ if(ypos >= ri->avctx->height)
+ break;
+ }
+}
+
+
+static int roq_decode_init(AVCodecContext *avctx)
+{
+ RoqContext *s = avctx->priv_data;
+
+ s->avctx = avctx;
+ s->first_frame = 1;
+ avctx->pix_fmt = PIX_FMT_YUV420P;
+ avctx->has_b_frames = 0;
+ dsputil_init(&s->dsp, avctx);
+
+ return 0;
+}
+
+static int roq_decode_frame(AVCodecContext *avctx,
+ void *data, int *data_size,
+ uint8_t *buf, int buf_size)
+{
+ RoqContext *s = avctx->priv_data;
+
+ *data_size = 0;
+
+ if (avctx->get_buffer(avctx, &s->current_frame)) {
+ printf (" RoQ: get_buffer() failed\n");
+ return -1;
+ }
+ s->y_stride = s->current_frame.linesize[0];
+ s->c_stride = s->current_frame.linesize[1];
+
+ s->buf = buf;
+ s->size = buf_size;
+ roqvideo_decode_frame(s);
+
+ /* release the last frame if it is allocated */
+ if (s->first_frame)
+ s->first_frame = 0;
+ else
+ avctx->release_buffer(avctx, &s->last_frame);
+
+ /* shuffle frames */
+ s->last_frame = s->current_frame;
+
+ *data_size = sizeof(AVFrame);
+ *(AVFrame*)data = s->current_frame;
+
+ return buf_size;
+}
+
+static int roq_decode_end(AVCodecContext *avctx)
+{
+ RoqContext *s = avctx->priv_data;
+
+ /* release the last frame */
+ avctx->release_buffer(avctx, &s->last_frame);
+
+ return 0;
+}
+
+AVCodec roq_decoder = {
+ "roqvideo",
+ CODEC_TYPE_VIDEO,
+ CODEC_ID_ROQ,
+ sizeof(RoqContext),
+ roq_decode_init,
+ NULL,
+ roq_decode_end,
+ roq_decode_frame,
+ CODEC_CAP_DR1,
+};
# mux and demuxes
OBJS+=mpeg.o mpegts.o mpegtsenc.o ffm.o crc.o img.o raw.o rm.o \
avienc.o avidec.o wav.o swf.o au.o gif.o mov.o mpjpeg.o dvcore.o dv.o \
- yuv4mpeg.o 4xm.o flvenc.o flvdec.o movenc.o psxstr.o
+ yuv4mpeg.o 4xm.o flvenc.o flvdec.o movenc.o psxstr.o idroq.o ipmovie.o
ifeq ($(CONFIG_RISKY),yes)
OBJS+= asf.o
flvenc_init();
flvdec_init();
str_init();
+ roq_init();
+ ipmovie_init();
#ifdef AMR_NB
amr_init();
/* psxstr.c */
int str_init(void);
+/* idroq.c */
+int roq_init(void);
+
+/* ipmovie.c */
+int ipmovie_init(void);
+
#include "rtp.h"
#include "rtsp.h"
--- /dev/null
+/*
+ * Id RoQ (.roq) File Demuxer
+ * Copyright (c) 2003 The ffmpeg Project
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+/**
+ * @file idroq.c
+ * Id RoQ format file demuxer
+ * by Mike Melanson (melanson@pcisys.net)
+ * for more information on the .roq file format, visit:
+ * http://www.csse.monash.edu.au/~timf/
+ */
+
+#include "avformat.h"
+
+#define LE_16(x) ((((uint8_t*)(x))[1] << 8) | ((uint8_t*)(x))[0])
+#define LE_32(x) ((((uint8_t*)(x))[3] << 24) | \
+ (((uint8_t*)(x))[2] << 16) | \
+ (((uint8_t*)(x))[1] << 8) | \
+ ((uint8_t*)(x))[0])
+
+#define RoQ_MAGIC_NUMBER 0x1084
+#define RoQ_CHUNK_PREAMBLE_SIZE 8
+#define RoQ_AUDIO_SAMPLE_RATE 22050
+#define RoQ_CHUNKS_TO_SCAN 30
+
+#define RoQ_INFO 0x1001
+#define RoQ_QUAD_CODEBOOK 0x1002
+#define RoQ_QUAD_VQ 0x1011
+#define RoQ_SOUND_MONO 0x1020
+#define RoQ_SOUND_STEREO 0x1021
+
+typedef struct RoqDemuxContext {
+
+ int width;
+ int height;
+ int audio_channels;
+ int framerate;
+ int frame_pts_inc;
+
+ int video_stream_index;
+ int audio_stream_index;
+
+ int64_t video_pts;
+ unsigned int audio_frame_count;
+
+} RoqDemuxContext;
+
+static int roq_probe(AVProbeData *p)
+{
+ if ((LE_16(&p->buf[0]) != RoQ_MAGIC_NUMBER) ||
+ (LE_32(&p->buf[2]) != 0xFFFFFFFF))
+ return 0;
+
+ return AVPROBE_SCORE_MAX;
+}
+
+static int roq_read_header(AVFormatContext *s,
+ AVFormatParameters *ap)
+{
+ RoqDemuxContext *roq = s->priv_data;
+ ByteIOContext *pb = &s->pb;
+ AVStream *st;
+ unsigned char preamble[RoQ_CHUNK_PREAMBLE_SIZE];
+ int i;
+ unsigned int chunk_size;
+ unsigned int chunk_type;
+
+ /* get the main header */
+ if (get_buffer(pb, preamble, RoQ_CHUNK_PREAMBLE_SIZE) !=
+ RoQ_CHUNK_PREAMBLE_SIZE)
+ return AVERROR_IO;
+ roq->framerate = LE_16(&preamble[6]);
+ roq->frame_pts_inc = 90000 / roq->framerate;
+
+ /* set the pts reference (1 pts = 1/90000) */
+ s->pts_num = 1;
+ s->pts_den = 90000;
+
+ /* init private context parameters */
+ roq->width = roq->height = roq->audio_channels = roq->video_pts =
+ roq->audio_frame_count = 0;
+
+ /* scan the first n chunks searching for A/V parameters */
+ for (i = 0; i < RoQ_CHUNKS_TO_SCAN; i++) {
+ if (get_buffer(pb, preamble, RoQ_CHUNK_PREAMBLE_SIZE) !=
+ RoQ_CHUNK_PREAMBLE_SIZE)
+ return AVERROR_IO;
+
+ chunk_type = LE_16(&preamble[0]);
+ chunk_size = LE_32(&preamble[2]);
+
+ switch (chunk_type) {
+
+ case RoQ_INFO:
+ /* fetch the width and height; reuse the preamble bytes */
+ if (get_buffer(pb, preamble, RoQ_CHUNK_PREAMBLE_SIZE) !=
+ RoQ_CHUNK_PREAMBLE_SIZE)
+ return AVERROR_IO;
+ roq->width = LE_16(&preamble[0]);
+ roq->height = LE_16(&preamble[2]);
+ break;
+
+ case RoQ_QUAD_CODEBOOK:
+ case RoQ_QUAD_VQ:
+ /* ignore during this scan */
+ url_fseek(pb, chunk_size, SEEK_CUR);
+ break;
+
+ case RoQ_SOUND_MONO:
+ roq->audio_channels = 1;
+ url_fseek(pb, chunk_size, SEEK_CUR);
+ break;
+
+ case RoQ_SOUND_STEREO:
+ roq->audio_channels = 2;
+ url_fseek(pb, chunk_size, SEEK_CUR);
+ break;
+
+ default:
+ printf (" unknown RoQ chunk type (%04X)\n", LE_16(&preamble[0]));
+ return AVERROR_INVALIDDATA;
+ break;
+ }
+
+ /* if all necessary parameters have been gathered, exit early */
+ if ((roq->width && roq->height) && roq->audio_channels)
+ break;
+ }
+
+ /* seek back to the first chunk */
+ url_fseek(pb, RoQ_CHUNK_PREAMBLE_SIZE, SEEK_SET);
+
+ /* initialize the decoders */
+ st = av_new_stream(s, 0);
+ if (!st)
+ return AVERROR_NOMEM;
+ roq->video_stream_index = st->index;
+ st->codec.codec_type = CODEC_TYPE_VIDEO;
+ st->codec.codec_id = CODEC_ID_ROQ;
+ st->codec.codec_tag = 0; /* no fourcc */
+ st->codec.width = roq->width;
+ st->codec.height = roq->height;
+
+ if (roq->audio_channels) {
+ st = av_new_stream(s, 0);
+ if (!st)
+ return AVERROR_NOMEM;
+ roq->audio_stream_index = st->index;
+ st->codec.codec_type = CODEC_TYPE_AUDIO;
+ st->codec.codec_id = CODEC_ID_ROQ_DPCM;
+ st->codec.codec_tag = 0; /* no tag */
+ st->codec.channels = roq->audio_channels;
+ st->codec.sample_rate = RoQ_AUDIO_SAMPLE_RATE;
+ st->codec.bits_per_sample = 16;
+ st->codec.bit_rate = st->codec.channels * st->codec.sample_rate *
+ st->codec.bits_per_sample;
+ st->codec.block_align = st->codec.channels * st->codec.bits_per_sample;
+ }
+printf (" video is %d x %d, audio is %d channels\n",
+ roq->width, roq->height, roq->audio_channels);
+
+ return 0;
+}
+
+static int roq_read_packet(AVFormatContext *s,
+ AVPacket *pkt)
+{
+ RoqDemuxContext *roq = s->priv_data;
+ ByteIOContext *pb = &s->pb;
+ int ret = 0;
+ unsigned int chunk_size;
+ unsigned int chunk_type;
+ unsigned int codebook_size;
+ unsigned char preamble[RoQ_CHUNK_PREAMBLE_SIZE];
+ int packet_read = 0;
+ offset_t codebook_offset;
+
+ while (!packet_read) {
+
+ if (url_feof(&s->pb))
+ return -EIO;
+
+ /* get the next chunk preamble */
+ if ((ret = get_buffer(pb, preamble, RoQ_CHUNK_PREAMBLE_SIZE)) !=
+ RoQ_CHUNK_PREAMBLE_SIZE)
+ return -EIO;
+
+ chunk_type = LE_16(&preamble[0]);
+ chunk_size = LE_32(&preamble[2]);
+
+ switch (chunk_type) {
+
+ case RoQ_INFO:
+ /* don't care about this chunk anymore */
+ url_fseek(pb, RoQ_CHUNK_PREAMBLE_SIZE, SEEK_CUR);
+ break;
+
+ case RoQ_QUAD_CODEBOOK:
+ /* packet needs to contain both this codebook and next VQ chunk */
+ codebook_offset = url_ftell(pb) - RoQ_CHUNK_PREAMBLE_SIZE;
+ codebook_size = chunk_size;
+ url_fseek(pb, codebook_size, SEEK_CUR);
+ if (get_buffer(pb, preamble, RoQ_CHUNK_PREAMBLE_SIZE) !=
+ RoQ_CHUNK_PREAMBLE_SIZE)
+ return -EIO;
+ chunk_size = LE_32(&preamble[2]) + RoQ_CHUNK_PREAMBLE_SIZE * 2 +
+ codebook_size;
+
+ /* rewind */
+ url_fseek(pb, codebook_offset, SEEK_SET);
+
+ /* load up the packet */
+ if (av_new_packet(pkt, chunk_size))
+ return -EIO;
+ pkt->stream_index = roq->video_stream_index;
+ pkt->pts = roq->video_pts;
+ ret = get_buffer(pb, pkt->data, chunk_size);
+ if (ret != chunk_size)
+ ret = -EIO;
+
+ roq->video_pts += roq->frame_pts_inc;
+ packet_read = 1;
+ break;
+
+ case RoQ_SOUND_MONO:
+ case RoQ_SOUND_STEREO:
+ case RoQ_QUAD_VQ:
+ /* load up the packet */
+ if (av_new_packet(pkt, chunk_size + RoQ_CHUNK_PREAMBLE_SIZE))
+ return -EIO;
+ /* copy over preamble */
+ memcpy(pkt->data, preamble, RoQ_CHUNK_PREAMBLE_SIZE);
+
+ if (chunk_type == RoQ_QUAD_VQ) {
+ pkt->stream_index = roq->video_stream_index;
+ pkt->pts = roq->video_pts;
+ roq->video_pts += roq->frame_pts_inc;
+ } else {
+ pkt->stream_index = roq->audio_stream_index;
+ pkt->pts = roq->audio_frame_count;
+ pkt->pts *= 90000;
+ pkt->pts /= RoQ_AUDIO_SAMPLE_RATE;
+ roq->audio_frame_count += (chunk_size / roq->audio_channels);
+ }
+
+ ret = get_buffer(pb, pkt->data, chunk_size);
+ if (ret != chunk_size)
+ ret = -EIO;
+
+ packet_read = 1;
+ break;
+
+ default:
+ printf (" unknown RoQ chunk (%04X)\n", chunk_type);
+ return AVERROR_INVALIDDATA;
+ break;
+ }
+ }
+
+ return ret;
+}
+
+static int roq_read_close(AVFormatContext *s)
+{
+// RoqDemuxContext *roq = (RoqDemuxContext *)s->priv_data;
+
+ return 0;
+}
+
+static AVInputFormat roq_iformat = {
+ "RoQ",
+ "Id RoQ format",
+ sizeof(RoqDemuxContext),
+ roq_probe,
+ roq_read_header,
+ roq_read_packet,
+ roq_read_close,
+};
+
+int roq_init(void)
+{
+ av_register_input_format(&roq_iformat);
+ return 0;
+}
--- /dev/null
+/*
+ * Interplay MVE File Demuxer
+ * Copyright (c) 2003 The ffmpeg Project
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+/**
+ * @file ipmovie.c
+ * Interplay MVE file demuxer
+ * by Mike Melanson (melanson@pcisys.net)
+ * For more information regarding the Interplay MVE file format, visit:
+ * http://www.pcisys.net/~melanson/codecs/
+ * The aforementioned site also contains a command line utility for parsing
+ * IP MVE files so that you can get a good idea of the typical structure of
+ * such files. This demuxer is not the best example to use if you are trying
+ * to write your own as it uses a rather roundabout approach for splitting
+ * up and sending out the chunks.
+ */
+
+#include "avformat.h"
+
+/* debugging support: #define DEBUG_IPMOVIE as non-zero to see extremely
+ * verbose information about the demux process */
+#define DEBUG_IPMOVIE 0
+
+#if DEBUG_IPMOVIE
+#define debug_ipmovie printf
+#else
+static inline void debug_ipmovie(const char *format, ...) { }
+#endif
+
+
+#define LE_16(x) ((((uint8_t*)(x))[1] << 8) | ((uint8_t*)(x))[0])
+#define LE_32(x) ((((uint8_t*)(x))[3] << 24) | \
+ (((uint8_t*)(x))[2] << 16) | \
+ (((uint8_t*)(x))[1] << 8) | \
+ ((uint8_t*)(x))[0])
+
+#define IPMOVIE_SIGNATURE "Interplay MVE File\x1A\0"
+#define IPMOVIE_SIGNATURE_SIZE 20
+#define CHUNK_PREAMBLE_SIZE 4
+#define OPCODE_PREAMBLE_SIZE 4
+
+#define CHUNK_INIT_AUDIO 0x0000
+#define CHUNK_AUDIO_ONLY 0x0001
+#define CHUNK_INIT_VIDEO 0x0002
+#define CHUNK_VIDEO 0x0003
+#define CHUNK_SHUTDOWN 0x0004
+#define CHUNK_END 0x0005
+/* these last types are used internally */
+#define CHUNK_DONE 0xFFFC
+#define CHUNK_NOMEM 0xFFFD
+#define CHUNK_EOF 0xFFFE
+#define CHUNK_BAD 0xFFFF
+
+#define OPCODE_END_OF_STREAM 0x00
+#define OPCODE_END_OF_CHUNK 0x01
+#define OPCODE_CREATE_TIMER 0x02
+#define OPCODE_INIT_AUDIO_BUFFERS 0x03
+#define OPCODE_START_STOP_AUDIO 0x04
+#define OPCODE_INIT_VIDEO_BUFFERS 0x05
+#define OPCODE_UNKNOWN_06 0x06
+#define OPCODE_SEND_BUFFER 0x07
+#define OPCODE_AUDIO_FRAME 0x08
+#define OPCODE_SILENCE_FRAME 0x09
+#define OPCODE_INIT_VIDEO_MODE 0x0A
+#define OPCODE_CREATE_GRADIENT 0x0B
+#define OPCODE_SET_PALETTE 0x0C
+#define OPCODE_SET_PALETTE_COMPRESSED 0x0D
+#define OPCODE_UNKNOWN_0E 0x0E
+#define OPCODE_SET_DECODING_MAP 0x0F
+#define OPCODE_UNKNOWN_10 0x10
+#define OPCODE_VIDEO_DATA 0x11
+#define OPCODE_UNKNOWN_12 0x12
+#define OPCODE_UNKNOWN_13 0x13
+#define OPCODE_UNKNOWN_14 0x14
+#define OPCODE_UNKNOWN_15 0x15
+
+#define PALETTE_COUNT 256
+
+typedef struct IPMVEContext {
+
+ unsigned char *buf;
+ int buf_size;
+
+ int fps;
+ int frame_pts_inc;
+
+ unsigned int video_width;
+ unsigned int video_height;
+ int64_t video_pts;
+
+ unsigned int audio_bits;
+ unsigned int audio_channels;
+ unsigned int audio_sample_rate;
+ unsigned int audio_type;
+ unsigned int audio_frame_count;
+
+ int video_stream_index;
+ int audio_stream_index;
+
+ offset_t audio_chunk_offset;
+ int audio_chunk_size;
+ offset_t video_chunk_offset;
+ int video_chunk_size;
+ offset_t decode_map_chunk_offset;
+ int decode_map_chunk_size;
+
+ offset_t next_chunk_offset;
+
+} IPMVEContext;
+
+static int load_ipmovie_packet(IPMVEContext *s, ByteIOContext *pb,
+ AVPacket *pkt) {
+
+ int chunk_type;
+ int64_t audio_pts = 0;
+
+ if (s->audio_chunk_offset) {
+
+ url_fseek(pb, s->audio_chunk_offset, SEEK_SET);
+ s->audio_chunk_offset = 0;
+
+ /* figure out the audio pts */
+ audio_pts = 90000;
+ audio_pts *= s->audio_frame_count;
+ audio_pts /= s->audio_sample_rate;
+
+ if (av_new_packet(pkt, s->audio_chunk_size))
+ return CHUNK_NOMEM;
+
+ pkt->stream_index = s->audio_stream_index;
+ pkt->pts = audio_pts;
+ if (get_buffer(pb, pkt->data, s->audio_chunk_size) !=
+ s->audio_chunk_size) {
+ av_free_packet(pkt);
+ return CHUNK_EOF;
+ }
+
+ /* audio frame maintenance */
+ if (s->audio_type != CODEC_ID_INTERPLAY_DPCM)
+ s->audio_frame_count +=
+ (s->audio_chunk_size / s->audio_channels / (s->audio_bits / 8));
+ else
+ s->audio_frame_count +=
+ (s->audio_chunk_size - 6) / s->audio_channels;
+
+ debug_ipmovie("sending audio frame with pts %lld (%d audio frames)\n",
+ audio_pts, s->audio_frame_count);
+
+ chunk_type = CHUNK_VIDEO;
+
+ } else if (s->decode_map_chunk_offset) {
+
+ url_fseek(pb, s->decode_map_chunk_offset, SEEK_SET);
+ s->decode_map_chunk_offset = 0;
+
+ if (av_new_packet(pkt, s->decode_map_chunk_size))
+ return CHUNK_NOMEM;
+
+ pkt->stream_index = s->video_stream_index;
+ pkt->pts = s->video_pts;
+ if (get_buffer(pb, pkt->data, s->decode_map_chunk_size) !=
+ s->decode_map_chunk_size) {
+ av_free_packet(pkt);
+ return CHUNK_EOF;
+ }
+
+ chunk_type = CHUNK_VIDEO;
+
+ } else if (s->video_chunk_offset) {
+
+ url_fseek(pb, s->video_chunk_offset, SEEK_SET);
+ s->video_chunk_offset = 0;
+
+ if (av_new_packet(pkt, s->video_chunk_size))
+ return CHUNK_NOMEM;
+
+ pkt->stream_index = s->video_stream_index;
+ pkt->pts = s->video_pts;
+ if (get_buffer(pb, pkt->data, s->video_chunk_size) !=
+ s->video_chunk_size) {
+ av_free_packet(pkt);
+ return CHUNK_EOF;
+ }
+
+ s->video_pts += s->frame_pts_inc;
+
+ chunk_type = CHUNK_VIDEO;
+
+ } else {
+
+ url_fseek(pb, s->next_chunk_offset, SEEK_SET);
+ chunk_type = CHUNK_DONE;
+
+ }
+
+ return chunk_type;
+}
+
+/* This function loads and processes a single chunk in an IP movie file.
+ * It returns the type of chunk that was processed. */
+static int process_ipmovie_chunk(IPMVEContext *s, ByteIOContext *pb,
+ AVPacket *pkt)
+{
+ unsigned char chunk_preamble[CHUNK_PREAMBLE_SIZE];
+ int chunk_type;
+ int chunk_size;
+ unsigned char opcode_preamble[OPCODE_PREAMBLE_SIZE];
+ unsigned char opcode_type;
+ unsigned char opcode_version;
+ int opcode_size;
+ unsigned char scratch[1024];
+ int j;
+ int first_color, last_color;
+ int audio_flags;
+
+ /* see if there are any pending packets */
+ chunk_type = load_ipmovie_packet(s, pb, pkt);
+ if ((chunk_type == CHUNK_VIDEO) && (chunk_type != CHUNK_DONE))
+ return chunk_type;
+
+ /* read the next chunk, wherever the file happens to be pointing */
+ if (url_feof(pb))
+ return CHUNK_EOF;
+ if (get_buffer(pb, chunk_preamble, CHUNK_PREAMBLE_SIZE) !=
+ CHUNK_PREAMBLE_SIZE)
+ return CHUNK_BAD;
+ chunk_size = LE_16(&chunk_preamble[0]);
+ chunk_type = LE_16(&chunk_preamble[2]);
+
+ debug_ipmovie("chunk type 0x%04X, 0x%04X bytes: ", chunk_type, chunk_size);
+
+ switch (chunk_type) {
+
+ case CHUNK_INIT_AUDIO:
+ debug_ipmovie("initialize audio\n");
+ break;
+
+ case CHUNK_AUDIO_ONLY:
+ debug_ipmovie("audio only\n");
+ break;
+
+ case CHUNK_INIT_VIDEO:
+ debug_ipmovie("initialize video\n");
+ break;
+
+ case CHUNK_VIDEO:
+ debug_ipmovie("video (and audio)\n");
+ break;
+
+ case CHUNK_SHUTDOWN:
+ debug_ipmovie("shutdown\n");
+ break;
+
+ case CHUNK_END:
+ debug_ipmovie("end\n");
+ break;
+
+ default:
+ debug_ipmovie("invalid chunk\n");
+ chunk_type = CHUNK_BAD;
+ break;
+
+ }
+
+ while ((chunk_size > 0) && (chunk_type != CHUNK_BAD)) {
+
+ /* read the next chunk, wherever the file happens to be pointing */
+ if (url_feof(pb)) {
+ chunk_type = CHUNK_EOF;
+ break;
+ }
+ if (get_buffer(pb, opcode_preamble, CHUNK_PREAMBLE_SIZE) !=
+ CHUNK_PREAMBLE_SIZE) {
+ chunk_type = CHUNK_BAD;
+ break;
+ }
+
+ opcode_size = LE_16(&opcode_preamble[0]);
+ opcode_type = opcode_preamble[2];
+ opcode_version = opcode_preamble[3];
+
+ chunk_size -= OPCODE_PREAMBLE_SIZE;
+ chunk_size -= opcode_size;
+ if (chunk_size < 0) {
+ debug_ipmovie("chunk_size countdown just went negative\n");
+ chunk_type = CHUNK_BAD;
+ break;
+ }
+
+ debug_ipmovie(" opcode type %02X, version %d, 0x%04X bytes: ",
+ opcode_type, opcode_version, opcode_size);
+ switch (opcode_type) {
+
+ case OPCODE_END_OF_STREAM:
+ debug_ipmovie("end of stream\n");
+ url_fseek(pb, opcode_size, SEEK_CUR);
+ break;
+
+ case OPCODE_END_OF_CHUNK:
+ debug_ipmovie("end of chunk\n");
+ url_fseek(pb, opcode_size, SEEK_CUR);
+ break;
+
+ case OPCODE_CREATE_TIMER:
+ debug_ipmovie("create timer\n");
+ if ((opcode_version > 0) || (opcode_size > 6)) {
+ debug_ipmovie("bad create_timer opcode\n");
+ chunk_type = CHUNK_BAD;
+ break;
+ }
+ if (get_buffer(pb, scratch, opcode_size) !=
+ opcode_size) {
+ chunk_type = CHUNK_BAD;
+ break;
+ }
+ s->fps = 1000000 / (LE_32(&scratch[0]) * LE_16(&scratch[4]));
+ s->fps++; /* above calculation usually yields 14.9; we need 15 */
+ s->frame_pts_inc = 90000 / s->fps;
+ debug_ipmovie("%d frames/second (timer div = %d, subdiv = %d)\n",
+ s->fps, LE_32(&scratch[0]), LE_16(&scratch[4]));
+ break;
+
+ case OPCODE_INIT_AUDIO_BUFFERS:
+ debug_ipmovie("initialize audio buffers\n");
+ if ((opcode_version > 1) || (opcode_size > 10)) {
+ debug_ipmovie("bad init_audio_buffers opcode\n");
+ chunk_type = CHUNK_BAD;
+ break;
+ }
+ if (get_buffer(pb, scratch, opcode_size) !=
+ opcode_size) {
+ chunk_type = CHUNK_BAD;
+ break;
+ }
+ s->audio_sample_rate = LE_16(&scratch[4]);
+ audio_flags = LE_16(&scratch[2]);
+ /* bit 0 of the flags: 0 = mono, 1 = stereo */
+ s->audio_channels = (audio_flags & 1) + 1;
+ /* bit 1 of the flags: 0 = 8 bit, 1 = 16 bit */
+ s->audio_bits = (((audio_flags >> 1) & 1) + 1) * 8;
+ /* bit 2 indicates compressed audio in version 1 opcode */
+ if ((opcode_version == 1) && (audio_flags & 0x4))
+ s->audio_type = CODEC_ID_INTERPLAY_DPCM;
+ else if (s->audio_bits == 16)
+ s->audio_type = CODEC_ID_PCM_S16LE;
+ else
+ s->audio_type = CODEC_ID_PCM_U8;
+ debug_ipmovie("audio: %d bits, %d Hz, %s, %s format\n",
+ s->audio_bits,
+ s->audio_sample_rate,
+ (s->audio_channels == 2) ? "stereo" : "mono",
+ (s->audio_type == CODEC_ID_INTERPLAY_DPCM) ?
+ "Interplay audio" : "PCM");
+ break;
+
+ case OPCODE_START_STOP_AUDIO:
+ debug_ipmovie("start/stop audio\n");
+ url_fseek(pb, opcode_size, SEEK_CUR);
+ break;
+
+ case OPCODE_INIT_VIDEO_BUFFERS:
+ debug_ipmovie("initialize video buffers\n");
+ if ((opcode_version > 2) || (opcode_size > 8)) {
+ debug_ipmovie("bad init_video_buffers opcode\n");
+ chunk_type = CHUNK_BAD;
+ break;
+ }
+ if (get_buffer(pb, scratch, opcode_size) !=
+ opcode_size) {
+ chunk_type = CHUNK_BAD;
+ break;
+ }
+ s->video_width = LE_16(&scratch[0]) * 8;
+ s->video_height = LE_16(&scratch[2]) * 8;
+ debug_ipmovie("video resolution: %d x %d\n",
+ s->video_width, s->video_height);
+ break;
+
+ case OPCODE_UNKNOWN_06:
+ case OPCODE_UNKNOWN_0E:
+ case OPCODE_UNKNOWN_10:
+ case OPCODE_UNKNOWN_12:
+ case OPCODE_UNKNOWN_13:
+ case OPCODE_UNKNOWN_14:
+ case OPCODE_UNKNOWN_15:
+ debug_ipmovie("unknown (but documented) opcode %02X\n", opcode_type);
+ url_fseek(pb, opcode_size, SEEK_CUR);
+ break;
+
+ case OPCODE_SEND_BUFFER:
+ debug_ipmovie("send buffer\n");
+ url_fseek(pb, opcode_size, SEEK_CUR);
+ break;
+
+ case OPCODE_AUDIO_FRAME:
+ debug_ipmovie("audio frame\n");
+
+ /* log position and move on for now */
+ s->audio_chunk_offset = url_ftell(pb);
+ s->audio_chunk_size = opcode_size;
+ url_fseek(pb, opcode_size, SEEK_CUR);
+ break;
+
+ case OPCODE_SILENCE_FRAME:
+ debug_ipmovie("silence frame\n");
+ url_fseek(pb, opcode_size, SEEK_CUR);
+ break;
+
+ case OPCODE_INIT_VIDEO_MODE:
+ debug_ipmovie("initialize video mode\n");
+ url_fseek(pb, opcode_size, SEEK_CUR);
+ break;
+
+ case OPCODE_CREATE_GRADIENT:
+ debug_ipmovie("create gradient\n");
+ url_fseek(pb, opcode_size, SEEK_CUR);
+ break;
+
+ case OPCODE_SET_PALETTE:
+ debug_ipmovie("set palette\n");
+ /* check for the logical maximum palette size
+ * (3 * 256 + 4 bytes) */
+ if (opcode_size > 0x304) {
+ debug_ipmovie("demux_ipmovie: set_palette opcode too large\n");
+ chunk_type = CHUNK_BAD;
+ break;
+ }
+ if (get_buffer(pb, scratch, opcode_size) != opcode_size) {
+ chunk_type = CHUNK_BAD;
+ break;
+ }
+
+ /* load the palette into internal data structure */
+ first_color = LE_16(&scratch[0]);
+ last_color = LE_16(&scratch[2]);
+ /* sanity check (since they are 16 bit values) */
+ if ((first_color > 0xFF) || (last_color > 0xFF)) {
+ debug_ipmovie("demux_ipmovie: set_palette indices out of range (%d -> %d)\n",
+ first_color, last_color);
+ chunk_type = CHUNK_BAD;
+ break;
+ }
+ j = 4; /* offset of first palette data */
+#if 0
+ for (i = first_color; i <= last_color; i++) {
+ s->palette[i].r = scratch[j++] * 4;
+ s->palette[i].g = scratch[j++] * 4;
+ s->palette[i].b = scratch[j++] * 4;
+ }
+#endif
+ break;
+
+ case OPCODE_SET_PALETTE_COMPRESSED:
+ debug_ipmovie("set palette compressed\n");
+ url_fseek(pb, opcode_size, SEEK_CUR);
+ break;
+
+ case OPCODE_SET_DECODING_MAP:
+ debug_ipmovie("set decoding map\n");
+
+ /* log position and move on for now */
+ s->decode_map_chunk_offset = url_ftell(pb);
+ s->decode_map_chunk_size = opcode_size;
+ url_fseek(pb, opcode_size, SEEK_CUR);
+ break;
+
+ case OPCODE_VIDEO_DATA:
+ debug_ipmovie("set video data\n");
+
+ /* log position and move on for now */
+ s->video_chunk_offset = url_ftell(pb);
+ s->video_chunk_size = opcode_size;
+ url_fseek(pb, opcode_size, SEEK_CUR);
+ break;
+
+ default:
+ debug_ipmovie("*** unknown opcode type\n");
+ chunk_type = CHUNK_BAD;
+ break;
+
+ }
+ }
+
+ /* make a note of where the stream is sitting */
+ s->next_chunk_offset = url_ftell(pb);
+
+ /* dispatch the first of any pending packets */
+ if ((chunk_type == CHUNK_VIDEO) || (chunk_type == CHUNK_AUDIO_ONLY))
+ chunk_type = load_ipmovie_packet(s, pb, pkt);
+
+ return chunk_type;
+}
+
+static int ipmovie_probe(AVProbeData *p)
+{
+ if (p->buf_size < IPMOVIE_SIGNATURE_SIZE)
+ return 0;
+ if (strncmp(p->buf, IPMOVIE_SIGNATURE, IPMOVIE_SIGNATURE_SIZE) != 0)
+ return 0;
+
+ return AVPROBE_SCORE_MAX;
+}
+
+static int ipmovie_read_header(AVFormatContext *s,
+ AVFormatParameters *ap)
+{
+ IPMVEContext *ipmovie = (IPMVEContext *)s->priv_data;
+ ByteIOContext *pb = &s->pb;
+ AVPacket pkt;
+ AVStream *st;
+
+ /* initialize private context members */
+ ipmovie->video_pts = ipmovie->audio_frame_count = 0;
+ ipmovie->audio_chunk_offset = ipmovie->video_chunk_offset =
+ ipmovie->decode_map_chunk_offset = 0;
+
+ /* on the first read, this will position the stream at the first chunk */
+ ipmovie->next_chunk_offset = IPMOVIE_SIGNATURE_SIZE + 6;
+
+ /* process the first chunk which should be CHUNK_INIT_VIDEO */
+ if (process_ipmovie_chunk(ipmovie, pb, &pkt) != CHUNK_INIT_VIDEO)
+ return AVERROR_INVALIDDATA;
+
+ /* process the next chunk which should be CHUNK_INIT_AUDIO */
+ if (process_ipmovie_chunk(ipmovie, pb, &pkt) != CHUNK_INIT_AUDIO)
+ return AVERROR_INVALIDDATA;
+
+ /* set the pts reference (1 pts = 1/90000) */
+ s->pts_num = 1;
+ s->pts_den = 90000;
+
+ /* initialize the stream decoders */
+ st = av_new_stream(s, 0);
+ if (!st)
+ return AVERROR_NOMEM;
+ ipmovie->video_stream_index = st->index;
+ st->codec.codec_type = CODEC_TYPE_VIDEO;
+ st->codec.codec_id = CODEC_ID_INTERPLAY_VIDEO;
+ st->codec.codec_tag = 0; /* no fourcc */
+ st->codec.width = ipmovie->video_width;
+ st->codec.height = ipmovie->video_height;
+
+ st = av_new_stream(s, 0);
+ if (!st)
+ return AVERROR_NOMEM;
+ ipmovie->audio_stream_index = st->index;
+ st->codec.codec_type = CODEC_TYPE_AUDIO;
+ st->codec.codec_id = ipmovie->audio_type;
+ st->codec.codec_tag = 0; /* no tag */
+ st->codec.channels = ipmovie->audio_channels;
+ st->codec.sample_rate = ipmovie->audio_sample_rate;
+ st->codec.bits_per_sample = ipmovie->audio_bits;
+ st->codec.bit_rate = st->codec.channels * st->codec.sample_rate *
+ st->codec.bits_per_sample /
+ (st->codec.codec_id == CODEC_ID_INTERPLAY_DPCM) ? 2 : 1;
+ st->codec.block_align = st->codec.channels * st->codec.bits_per_sample;
+
+ return 0;
+}
+
+static int ipmovie_read_packet(AVFormatContext *s,
+ AVPacket *pkt)
+{
+ IPMVEContext *ipmovie = (IPMVEContext *)s->priv_data;
+ ByteIOContext *pb = &s->pb;
+ int ret;
+
+ ret = process_ipmovie_chunk(ipmovie, pb, pkt);
+ if (ret == CHUNK_BAD)
+ ret = AVERROR_INVALIDDATA;
+ else if (ret == CHUNK_EOF)
+ ret = -EIO;
+ else if (ret == CHUNK_NOMEM)
+ ret = AVERROR_NOMEM;
+ else
+ ret = 0;
+
+ return ret;
+}
+
+static int ipmovie_read_close(AVFormatContext *s)
+{
+// IPMVEContext *ipmovie = (IPMVEContext *)s->priv_data;
+
+ return 0;
+}
+
+static AVInputFormat ipmovie_iformat = {
+ "ipmovie",
+ "Interplay MVE format",
+ sizeof(IPMVEContext),
+ ipmovie_probe,
+ ipmovie_read_header,
+ ipmovie_read_packet,
+ ipmovie_read_close,
+};
+
+int ipmovie_init(void)
+{
+ av_register_input_format(&ipmovie_iformat);
+ return 0;
+}
+
projects / frescor / ffmpeg.git / commitdiff