generic-library/ffmpeg
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make containers pass palette change in AVPacket

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Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
This commit is contained in:
Kostya Shishkov 2011-04-09 15:49:51 +02:00 committed by Luca Barbato
parent 4de339e219
commit 2d8591c27e
20 changed files with 173 additions and 132 deletions
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21
libavcodec/8bps.c
View File

@ -50,6 +50,8 @@ typedef struct EightBpsContext {
unsigned char planes;
unsigned char planemap[4];
uint32_t pal[256];
} EightBpsContext;
@ -129,13 +131,16 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPac
}
}
if (avctx->palctrl) {
memcpy (c->pic.data[1], avctx->palctrl->palette, AVPALETTE_SIZE);
if (avctx->palctrl->palette_changed) {
if (avctx->bits_per_coded_sample <= 8) {
const uint8_t *pal = av_packet_get_side_data(avpkt,
AV_PKT_DATA_PALETTE,
NULL);
if (pal) {
c->pic.palette_has_changed = 1;
avctx->palctrl->palette_changed = 0;
} else
c->pic.palette_has_changed = 0;
memcpy(c->pal, pal, AVPALETTE_SIZE);
}
memcpy (c->pic.data[1], c->pal, AVPALETTE_SIZE);
}
*data_size = sizeof(AVFrame);
@ -164,10 +169,6 @@ static av_cold int decode_init(AVCodecContext *avctx)
avctx->pix_fmt = PIX_FMT_PAL8;
c->planes = 1;
c->planemap[0] = 0; // 1st plane is palette indexes
if (avctx->palctrl == NULL) {
av_log(avctx, AV_LOG_ERROR, "Error: PAL8 format but no palette from demuxer.\n");
return -1;
}
break;
case 24:
avctx->pix_fmt = avctx->get_format(avctx, pixfmt_rgb24);

21
libavcodec/cinepak.c
View File

@ -67,6 +67,7 @@ typedef struct CinepakContext {
int sega_film_skip_bytes;
uint32_t pal[256];
} CinepakContext;
static void cinepak_decode_codebook (cvid_codebook *codebook,
@ -395,7 +396,7 @@ static av_cold int cinepak_decode_init(AVCodecContext *avctx)
s->sega_film_skip_bytes = -1; /* uninitialized state */
// check for paletted data
if ((avctx->palctrl == NULL) || (avctx->bits_per_coded_sample == 40)) {
if (avctx->bits_per_coded_sample != 8) {
s->palette_video = 0;
avctx->pix_fmt = PIX_FMT_YUV420P;
} else {
@ -427,16 +428,18 @@ static int cinepak_decode_frame(AVCodecContext *avctx,
return -1;
}
if (s->palette_video) {
const uint8_t *pal = av_packet_get_side_data(avpkt, AV_PKT_DATA_PALETTE, NULL);
if (pal) {
s->frame.palette_has_changed = 1;
memcpy(s->pal, pal, AVPALETTE_SIZE);
}
}
cinepak_decode(s);
if (s->palette_video) {
memcpy (s->frame.data[1], avctx->palctrl->palette, AVPALETTE_SIZE);
if (avctx->palctrl->palette_changed) {
s->frame.palette_has_changed = 1;
avctx->palctrl->palette_changed = 0;
} else
s->frame.palette_has_changed = 0;
}
if (s->palette_video)
memcpy (s->frame.data[1], s->pal, AVPALETTE_SIZE);
*data_size = sizeof(AVFrame);
*(AVFrame*)data = s->frame;

12
libavcodec/idcinvideo.c
View File

@ -72,6 +72,7 @@ typedef struct IdcinContext {
hnode huff_nodes[256][HUF_TOKENS*2];
int num_huff_nodes[256];
uint32_t pal[256];
} IdcinContext;
/*
@ -213,7 +214,7 @@ static int idcin_decode_frame(AVCodecContext *avctx,
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
IdcinContext *s = avctx->priv_data;
AVPaletteControl *palette_control = avctx->palctrl;
const uint8_t *pal = av_packet_get_side_data(avpkt, AV_PKT_DATA_PALETTE, NULL);
s->buf = buf;
s->size = buf_size;
@ -228,13 +229,12 @@ static int idcin_decode_frame(AVCodecContext *avctx,
idcin_decode_vlcs(s);
/* make the palette available on the way out */
memcpy(s->frame.data[1], palette_control->palette, PALETTE_COUNT * 4);
/* If palette changed inform application*/
if (palette_control->palette_changed) {
palette_control->palette_changed = 0;
if (pal) {
s->frame.palette_has_changed = 1;
memcpy(s->pal, pal, AVPALETTE_SIZE);
}
/* make the palette available on the way out */
memcpy(s->frame.data[1], s->pal, AVPALETTE_SIZE);
*data_size = sizeof(AVFrame);
*(AVFrame*)data = s->frame;

21
libavcodec/interplayvideo.c
View File

@ -77,6 +77,7 @@ typedef struct IpvideoContext {
int stride;
int upper_motion_limit_offset;
uint32_t pal[256];
} IpvideoContext;
#define CHECK_STREAM_PTR(stream_ptr, stream_end, n) \
@ -969,7 +970,7 @@ static void ipvideo_decode_opcodes(IpvideoContext *s)
if (!s->is_16bpp) {
/* this is PAL8, so make the palette available */
memcpy(s->current_frame.data[1], s->avctx->palctrl->palette, PALETTE_COUNT * 4);
memcpy(s->current_frame.data[1], s->pal, AVPALETTE_SIZE);
s->stride = s->current_frame.linesize[0];
s->stream_ptr = s->buf + 14; /* data starts 14 bytes in */
@ -1023,10 +1024,6 @@ static av_cold int ipvideo_decode_init(AVCodecContext *avctx)
s->is_16bpp = avctx->bits_per_coded_sample == 16;
avctx->pix_fmt = s->is_16bpp ? PIX_FMT_RGB555 : PIX_FMT_PAL8;
if (!s->is_16bpp && s->avctx->palctrl == NULL) {
av_log(avctx, AV_LOG_ERROR, " Interplay video: palette expected.\n");
return -1;
}
dsputil_init(&s->dsp, avctx);
@ -1046,7 +1043,6 @@ static int ipvideo_decode_frame(AVCodecContext *avctx,
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
IpvideoContext *s = avctx->priv_data;
AVPaletteControl *palette_control = avctx->palctrl;
/* compressed buffer needs to be large enough to at least hold an entire
* decoding map */
@ -1063,13 +1059,16 @@ static int ipvideo_decode_frame(AVCodecContext *avctx,
return -1;
}
ipvideo_decode_opcodes(s);
if (!s->is_16bpp && palette_control->palette_changed) {
palette_control->palette_changed = 0;
s->current_frame.palette_has_changed = 1;
if (!s->is_16bpp) {
const uint8_t *pal = av_packet_get_side_data(avpkt, AV_PKT_DATA_PALETTE, NULL);
if (pal) {
s->current_frame.palette_has_changed = 1;
memcpy(s->pal, pal, AVPALETTE_SIZE);
}
}
ipvideo_decode_opcodes(s);
*data_size = sizeof(AVFrame);
*(AVFrame*)data = s->current_frame;

16
libavcodec/kmvc.c
View File

@ -233,6 +233,7 @@ static int decode_frame(AVCodecContext * avctx, void *data, int *data_size, AVPa
int i;
int header;
int blocksize;
const uint8_t *pal = av_packet_get_side_data(avpkt, AV_PKT_DATA_PALETTE, NULL);
if (ctx->pic.data[0])
avctx->release_buffer(avctx, &ctx->pic);
@ -264,13 +265,6 @@ static int decode_frame(AVCodecContext * avctx, void *data, int *data_size, AVPa
ctx->pic.pict_type = FF_P_TYPE;
}
/* if palette has been changed, copy it from palctrl */
if (ctx->avctx->palctrl && ctx->avctx->palctrl->palette_changed) {
memcpy(ctx->pal, ctx->avctx->palctrl->palette, AVPALETTE_SIZE);
ctx->setpal = 1;
ctx->avctx->palctrl->palette_changed = 0;
}
if (header & KMVC_PALETTE) {
ctx->pic.palette_has_changed = 1;
// palette starts from index 1 and has 127 entries
@ -279,6 +273,11 @@ static int decode_frame(AVCodecContext * avctx, void *data, int *data_size, AVPa
}
}
if (pal) {
ctx->pic.palette_has_changed = 1;
memcpy(ctx->pal, pal, AVPALETTE_SIZE);
}
if (ctx->setpal) {
ctx->setpal = 0;
ctx->pic.palette_has_changed = 1;
@ -374,9 +373,6 @@ static av_cold int decode_init(AVCodecContext * avctx)
src += 4;
}
c->setpal = 1;
if (c->avctx->palctrl) {
c->avctx->palctrl->palette_changed = 0;
}
}
avctx->pix_fmt = PIX_FMT_PAL8;

17
libavcodec/msrle.c
View File

@ -26,9 +26,6 @@
* http://www.pcisys.net/~melanson/codecs/
*
* The MS RLE decoder outputs PAL8 colorspace data.
*
* Note that this decoder expects the palette colors from the end of the
* BITMAPINFO header passed through palctrl.
*/
#include <stdio.h>
@ -46,6 +43,7 @@ typedef struct MsrleContext {
const unsigned char *buf;
int size;
uint32_t pal[256];
} MsrleContext;
static av_cold int msrle_decode_init(AVCodecContext *avctx)
@ -91,13 +89,16 @@ static int msrle_decode_frame(AVCodecContext *avctx,
return -1;
}
if (s->avctx->palctrl) {
/* make the palette available */
memcpy(s->frame.data[1], s->avctx->palctrl->palette, AVPALETTE_SIZE);
if (s->avctx->palctrl->palette_changed) {
if (avctx->bits_per_coded_sample <= 8) {
const uint8_t *pal = av_packet_get_side_data(avpkt, AV_PKT_DATA_PALETTE, NULL);
if (pal) {
s->frame.palette_has_changed = 1;
s->avctx->palctrl->palette_changed = 0;
memcpy(s->pal, pal, AVPALETTE_SIZE);
}
/* make the palette available */
memcpy(s->frame.data[1], s->pal, AVPALETTE_SIZE);
}
/* FIXME how to correctly detect RLE ??? */

24
libavcodec/msvideo1.c
View File

@ -25,9 +25,6 @@
* For more information about the MS Video-1 format, visit:
* http://www.pcisys.net/~melanson/codecs/
*
* This decoder outputs either PAL8 or RGB555 data, depending on the
* whether a RGB palette was passed through palctrl;
* if it's present, then the data is PAL8; RGB555 otherwise.
*/
#include <stdio.h>
@ -55,6 +52,7 @@ typedef struct Msvideo1Context {
int mode_8bit; /* if it's not 8-bit, it's 16-bit */
uint32_t pal[256];
} Msvideo1Context;
static av_cold int msvideo1_decode_init(AVCodecContext *avctx)
@ -64,7 +62,7 @@ static av_cold int msvideo1_decode_init(AVCodecContext *avctx)
s->avctx = avctx;
/* figure out the colorspace based on the presence of a palette */
if (s->avctx->palctrl) {
if (s->avctx->bits_per_coded_sample == 8) {
s->mode_8bit = 1;
avctx->pix_fmt = PIX_FMT_PAL8;
} else {
@ -173,13 +171,8 @@ static void msvideo1_decode_8bit(Msvideo1Context *s)
}
/* make the palette available on the way out */
if (s->avctx->pix_fmt == PIX_FMT_PAL8) {
memcpy(s->frame.data[1], s->avctx->palctrl->palette, AVPALETTE_SIZE);
if (s->avctx->palctrl->palette_changed) {
s->frame.palette_has_changed = 1;
s->avctx->palctrl->palette_changed = 0;
}
}
if (s->avctx->pix_fmt == PIX_FMT_PAL8)
memcpy(s->frame.data[1], s->pal, AVPALETTE_SIZE);
}
static void msvideo1_decode_16bit(Msvideo1Context *s)
@ -309,6 +302,15 @@ static int msvideo1_decode_frame(AVCodecContext *avctx,
return -1;
}
if (s->mode_8bit) {
const uint8_t *pal = av_packet_get_side_data(avpkt, AV_PKT_DATA_PALETTE, NULL);
if (pal) {
memcpy(s->pal, pal, AVPALETTE_SIZE);
s->frame.palette_has_changed = 1;
}
}
if (s->mode_8bit)
msvideo1_decode_8bit(s);
else

12
libavcodec/qpeg.c
View File

@ -30,6 +30,7 @@ typedef struct QpegContext{
AVCodecContext *avctx;
AVFrame pic;
uint8_t *refdata;
uint32_t pal[256];
} QpegContext;
static void qpeg_decode_intra(const uint8_t *src, uint8_t *dst, int size,
@ -256,6 +257,7 @@ static int decode_frame(AVCodecContext *avctx,
AVFrame * const p= (AVFrame*)&a->pic;
uint8_t* outdata;
int delta;
const uint8_t *pal = av_packet_get_side_data(avpkt, AV_PKT_DATA_PALETTE, NULL);
if(p->data[0])
avctx->release_buffer(avctx, p);
@ -274,11 +276,11 @@ static int decode_frame(AVCodecContext *avctx,
}
/* make the palette available on the way out */
memcpy(a->pic.data[1], a->avctx->palctrl->palette, AVPALETTE_SIZE);
if (a->avctx->palctrl->palette_changed) {
if (pal) {
a->pic.palette_has_changed = 1;
a->avctx->palctrl->palette_changed = 0;
memcpy(a->pal, pal, AVPALETTE_SIZE);
}
memcpy(a->pic.data[1], a->pal, AVPALETTE_SIZE);
*data_size = sizeof(AVFrame);
*(AVFrame*)data = a->pic;
@ -289,10 +291,6 @@ static int decode_frame(AVCodecContext *avctx,
static av_cold int decode_init(AVCodecContext *avctx){
QpegContext * const a = avctx->priv_data;
if (!avctx->palctrl) {
av_log(avctx, AV_LOG_FATAL, "Missing required palette via palctrl\n");
return -1;
}
a->avctx = avctx;
avctx->pix_fmt= PIX_FMT_PAL8;
a->refdata = av_malloc(avctx->width * avctx->height);

12
libavcodec/qtrle.c
View File

@ -46,6 +46,7 @@ typedef struct QtrleContext {
const unsigned char *buf;
int size;
uint32_t pal[256];
} QtrleContext;
#define CHECK_STREAM_PTR(n) \
@ -511,12 +512,15 @@ static int qtrle_decode_frame(AVCodecContext *avctx,
}
if(has_palette) {
/* make the palette available on the way out */
memcpy(s->frame.data[1], s->avctx->palctrl->palette, AVPALETTE_SIZE);
if (s->avctx->palctrl->palette_changed) {
const uint8_t *pal = av_packet_get_side_data(avpkt, AV_PKT_DATA_PALETTE, NULL);
if (pal) {
s->frame.palette_has_changed = 1;
s->avctx->palctrl->palette_changed = 0;
memcpy(s->pal, pal, AVPALETTE_SIZE);
}
/* make the palette available on the way out */
memcpy(s->frame.data[1], s->pal, AVPALETTE_SIZE);
}
done:

10
libavcodec/rawdec.c
View File

@ -158,9 +158,13 @@ static int raw_decode(AVCodecContext *avctx,
(av_pix_fmt_descriptors[avctx->pix_fmt].flags & PIX_FMT_PAL))){
frame->data[1]= context->palette;
}
if (avctx->palctrl && avctx->palctrl->palette_changed) {
memcpy(frame->data[1], avctx->palctrl->palette, AVPALETTE_SIZE);
avctx->palctrl->palette_changed = 0;
if (avctx->pix_fmt == PIX_FMT_PAL8) {
const uint8_t *pal = av_packet_get_side_data(avpkt, AV_PKT_DATA_PALETTE, NULL);
if (pal) {
memcpy(frame->data[1], pal, AVPALETTE_SIZE);
frame->palette_has_changed = 1;
}
}
if(avctx->pix_fmt==PIX_FMT_BGR24 && ((frame->linesize[0]+3)&~3)*avctx->height <= buf_size)
frame->linesize[0] = (frame->linesize[0]+3)&~3;

13
libavcodec/smc.c
View File

@ -54,6 +54,7 @@ typedef struct SmcContext {
unsigned char color_quads[COLORS_PER_TABLE * CQUAD];
unsigned char color_octets[COLORS_PER_TABLE * COCTET];
uint32_t pal[256];
} SmcContext;
#define GET_BLOCK_COUNT() \
@ -110,11 +111,7 @@ static void smc_decode_stream(SmcContext *s)
int color_octet_index = 0;
/* make the palette available */
memcpy(s->frame.data[1], s->avctx->palctrl->palette, AVPALETTE_SIZE);
if (s->avctx->palctrl->palette_changed) {
s->frame.palette_has_changed = 1;
s->avctx->palctrl->palette_changed = 0;
}
memcpy(s->frame.data[1], s->pal, AVPALETTE_SIZE);
chunk_size = AV_RB32(&s->buf[stream_ptr]) & 0x00FFFFFF;
stream_ptr += 4;
@ -440,6 +437,7 @@ static int smc_decode_frame(AVCodecContext *avctx,
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
SmcContext *s = avctx->priv_data;
const uint8_t *pal = av_packet_get_side_data(avpkt, AV_PKT_DATA_PALETTE, NULL);
s->buf = buf;
s->size = buf_size;
@ -452,6 +450,11 @@ static int smc_decode_frame(AVCodecContext *avctx,
return -1;
}
if (pal) {
s->frame.palette_has_changed = 1;
memcpy(s->pal, pal, AVPALETTE_SIZE);
}
smc_decode_stream(s);
*data_size = sizeof(AVFrame);

7
libavcodec/targa.c
View File

@ -171,13 +171,6 @@ static int decode_frame(AVCodecContext *avctx,
stride = -p->linesize[0];
}
if(avctx->pix_fmt == PIX_FMT_PAL8 && avctx->palctrl){
memcpy(p->data[1], avctx->palctrl->palette, AVPALETTE_SIZE);
if(avctx->palctrl->palette_changed){
p->palette_has_changed = 1;
avctx->palctrl->palette_changed = 0;
}
}
if(colors){
size_t pal_size;
if((colors + first_clr) > 256){

10
libavcodec/tscc.c
View File

@ -60,6 +60,8 @@ typedef struct TsccContext {
unsigned char* decomp_buf;
int height;
z_stream zstream;
uint32_t pal[256];
} CamtasiaContext;
/*
@ -111,11 +113,13 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPac
/* make the palette available on the way out */
if (c->avctx->pix_fmt == PIX_FMT_PAL8) {
memcpy(c->pic.data[1], c->avctx->palctrl->palette, AVPALETTE_SIZE);
if (c->avctx->palctrl->palette_changed) {
const uint8_t *pal = av_packet_get_side_data(avpkt, AV_PKT_DATA_PALETTE, NULL);
if (pal) {
c->pic.palette_has_changed = 1;
c->avctx->palctrl->palette_changed = 0;
memcpy(c->pal, pal, AVPALETTE_SIZE);
}
memcpy(c->pic.data[1], c->pal, AVPALETTE_SIZE);
}
*data_size = sizeof(AVFrame);

2
libavformat/asf.h
View File

@ -44,6 +44,8 @@ typedef struct {
uint16_t stream_language_index;
int palette_changed;
uint32_t palette[256];
} ASFStream;
typedef uint8_t ff_asf_guid[16];

21
libavformat/asfdec.c
View File

@ -365,15 +365,14 @@ static int asf_read_stream_properties(AVFormatContext *s, int64_t size)
/* This is true for all paletted codecs implemented in ffmpeg */
if (st->codec->extradata_size && (st->codec->bits_per_coded_sample <= 8)) {
int av_unused i;
st->codec->palctrl = av_mallocz(sizeof(AVPaletteControl));
#if HAVE_BIGENDIAN
for (i = 0; i < FFMIN(st->codec->extradata_size, AVPALETTE_SIZE)/4; i++)
st->codec->palctrl->palette[i] = av_bswap32(((uint32_t*)st->codec->extradata)[i]);
asf_st->palette[i] = av_bswap32(((uint32_t*)st->codec->extradata)[i]);
#else
memcpy(st->codec->palctrl->palette, st->codec->extradata,
FFMIN(st->codec->extradata_size, AVPALETTE_SIZE));
memcpy(asf_st->palette, st->codec->extradata,
FFMIN(st->codec->extradata_size, AVPALETTE_SIZE));
#endif
st->codec->palctrl->palette_changed = 1;
asf_st->palette_changed = 1;
}
st->codec->codec_tag = tag1;
@ -966,6 +965,17 @@ static int ff_asf_parse_packet(AVFormatContext *s, AVIOContext *pb, AVPacket *pk
asf_st->pkt.stream_index = asf->stream_index;
asf_st->pkt.pos =
asf_st->packet_pos= asf->packet_pos;
if (asf_st->pkt.data && asf_st->palette_changed) {
uint8_t *pal;
pal = av_packet_new_side_data(pkt, AV_PKT_DATA_PALETTE,
AVPALETTE_SIZE);
if (!pal) {
av_log(s, AV_LOG_ERROR, "Cannot append palette to packet\n");
} else {
memcpy(pal, asf_st->palette, AVPALETTE_SIZE);
asf_st->palette_changed = 0;
}
}
//printf("new packet: stream:%d key:%d packet_key:%d audio:%d size:%d\n",
//asf->stream_index, asf->packet_key_frame, asf_st->pkt.flags & AV_PKT_FLAG_KEY,
//s->streams[asf->stream_index]->codec->codec_type == AVMEDIA_TYPE_AUDIO, asf->packet_obj_size);
@ -1127,7 +1137,6 @@ static int asf_read_close(AVFormatContext *s)
asf_reset_header(s);
for(i=0;i<s->nb_streams;i++) {
AVStream *st = s->streams[i];
av_free(st->codec->palctrl);
}
return 0;
}

24
libavformat/avidec.c
View File

@ -590,15 +590,14 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
/* This code assumes that extradata contains only palette. */
/* This is true for all paletted codecs implemented in FFmpeg. */
if (st->codec->extradata_size && (st->codec->bits_per_coded_sample <= 8)) {
st->codec->palctrl = av_mallocz(sizeof(AVPaletteControl));
#if HAVE_BIGENDIAN
for (i = 0; i < FFMIN(st->codec->extradata_size, AVPALETTE_SIZE)/4; i++)
st->codec->palctrl->palette[i] = av_bswap32(((uint32_t*)st->codec->extradata)[i]);
ast->pal[i] = av_bswap32(((uint32_t*)st->codec->extradata)[i]);
#else
memcpy(st->codec->palctrl->palette, st->codec->extradata,
memcpy(ast->pal, st->codec->extradata,
FFMIN(st->codec->extradata_size, AVPALETTE_SIZE));
#endif
st->codec->palctrl->palette_changed = 1;
ast->has_pal = 1;
}
print_tag("video", tag1, 0);
@ -932,14 +931,14 @@ resync:
return err;
if(ast->has_pal && pkt->data && pkt->size<(unsigned)INT_MAX/2){
void *ptr= av_realloc(pkt->data, pkt->size + 4*256 + FF_INPUT_BUFFER_PADDING_SIZE);
if(ptr){
ast->has_pal=0;
pkt->size += 4*256;
pkt->data= ptr;
memcpy(pkt->data + pkt->size - 4*256, ast->pal, 4*256);
}else
av_log(s, AV_LOG_ERROR, "Failed to append palette\n");
uint8_t *pal;
pal = av_packet_new_side_data(pkt, AV_PKT_DATA_PALETTE, AVPALETTE_SIZE);
if(!pal){
av_log(s, AV_LOG_ERROR, "Failed to allocate data for palette\n");
}else{
memcpy(pal, ast->pal, AVPALETTE_SIZE);
ast->has_pal = 0;
}
}
if (CONFIG_DV_DEMUXER && avi->dv_demux) {
@ -1340,7 +1339,6 @@ static int avi_read_close(AVFormatContext *s)
for(i=0;i<s->nb_streams;i++) {
AVStream *st = s->streams[i];
AVIStream *ast = st->priv_data;
av_free(st->codec->palctrl);
if (ast) {
if (ast->sub_ctx) {
av_freep(&ast->sub_ctx->pb);

17
libavformat/idcin.c
View File

@ -86,8 +86,6 @@ typedef struct IdcinDemuxContext {
int audio_present;
int64_t pts;
AVPaletteControl palctrl;
} IdcinDemuxContext;
static int idcin_probe(AVProbeData *p)
@ -172,8 +170,6 @@ static int idcin_read_header(AVFormatContext *s,
if (avio_read(pb, st->codec->extradata, HUFFMAN_TABLE_SIZE) !=
HUFFMAN_TABLE_SIZE)
return AVERROR(EIO);
/* save a reference in order to transport the palette */
st->codec->palctrl = &idcin->palctrl;
/* if sample rate is 0, assume no audio */
if (sample_rate) {
@ -226,6 +222,7 @@ static int idcin_read_packet(AVFormatContext *s,
int palette_scale;
unsigned char r, g, b;
unsigned char palette_buffer[768];
uint32_t palette[256];
if (s->pb->eof_reached)
return AVERROR(EIO);
@ -236,7 +233,6 @@ static int idcin_read_packet(AVFormatContext *s,
return AVERROR(EIO);
} else if (command == 1) {
/* trigger a palette change */
idcin->palctrl.palette_changed = 1;
if (avio_read(pb, palette_buffer, 768) != 768)
return AVERROR(EIO);
/* scale the palette as necessary */
@ -251,7 +247,7 @@ static int idcin_read_packet(AVFormatContext *s,
r = palette_buffer[i * 3 ] << palette_scale;
g = palette_buffer[i * 3 + 1] << palette_scale;
b = palette_buffer[i * 3 + 2] << palette_scale;
idcin->palctrl.palette[i] = (r << 16) | (g << 8) | (b);
palette[i] = (r << 16) | (g << 8) | (b);
}
}
@ -262,6 +258,15 @@ static int idcin_read_packet(AVFormatContext *s,
ret= av_get_packet(pb, pkt, chunk_size);
if (ret < 0)
return ret;
if (command == 1) {
uint8_t *pal;
pal = av_packet_new_side_data(pkt, AV_PKT_DATA_PALETTE,
AVPALETTE_SIZE);
if (ret < 0)
return ret;
memcpy(pal, palette, AVPALETTE_SIZE);
}
pkt->stream_index = idcin->video_stream_index;
pkt->pts = idcin->pts;
} else {

23
libavformat/ipmovie.c
View File

@ -97,6 +97,8 @@ typedef struct IPMVEContext {
unsigned int video_width;
unsigned int video_height;
int64_t video_pts;
uint32_t palette[256];
int has_palette;
unsigned int audio_bits;
unsigned int audio_channels;
@ -116,8 +118,6 @@ typedef struct IPMVEContext {
int64_t next_chunk_offset;
AVPaletteControl palette_control;
} IPMVEContext;
static int load_ipmovie_packet(IPMVEContext *s, AVIOContext *pb,
@ -162,6 +162,17 @@ static int load_ipmovie_packet(IPMVEContext *s, AVIOContext *pb,
if (av_new_packet(pkt, s->decode_map_chunk_size + s->video_chunk_size))
return CHUNK_NOMEM;
if (s->has_palette) {
uint8_t *pal;
pal = av_packet_new_side_data(pkt, AV_PKT_DATA_PALETTE,
AVPALETTE_SIZE);
if (pal) {
memcpy(pal, s->palette, AVPALETTE_SIZE);
s->has_palette = 0;
}
}
pkt->pos= s->decode_map_chunk_offset;
avio_seek(pb, s->decode_map_chunk_offset, SEEK_SET);
s->decode_map_chunk_offset = 0;
@ -456,10 +467,9 @@ static int process_ipmovie_chunk(IPMVEContext *s, AVIOContext *pb,
r = scratch[j++] * 4;
g = scratch[j++] * 4;
b = scratch[j++] * 4;
s->palette_control.palette[i] = (r << 16) | (g << 8) | (b);
s->palette[i] = (r << 16) | (g << 8) | (b);
}
/* indicate a palette change */
s->palette_control.palette_changed = 1;
s->has_palette = 1;
break;
case OPCODE_SET_PALETTE_COMPRESSED:
@ -573,9 +583,6 @@ static int ipmovie_read_header(AVFormatContext *s,
st->codec->height = ipmovie->video_height;
st->codec->bits_per_coded_sample = ipmovie->video_bpp;
/* palette considerations */
st->codec->palctrl = &ipmovie->palette_control;
if (ipmovie->audio_type) {
st = av_new_stream(s, 0);
if (!st)

2
libavformat/isom.h
View File

@ -123,6 +123,8 @@ typedef struct MOVStreamContext {
int width; ///< tkhd width
int height; ///< tkhd height
int dts_shift; ///< dts shift when ctts is negative
uint32_t palette[256];
int has_palette;
} MOVStreamContext;
typedef struct MOVContext {

20
libavformat/mov.c
View File

@ -1027,7 +1027,6 @@ int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
unsigned int color_start, color_count, color_end;
unsigned char r, g, b;
st->codec->palctrl = av_malloc(sizeof(*st->codec->palctrl));
if (color_greyscale) {
int color_index, color_dec;
/* compute the greyscale palette */
@ -1037,7 +1036,7 @@ int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
color_dec = 256 / (color_count - 1);
for (j = 0; j < color_count; j++) {
r = g = b = color_index;
st->codec->palctrl->palette[j] =
sc->palette[j] =
(r << 16) | (g << 8) | (b);
color_index -= color_dec;
if (color_index < 0)
@ -1058,7 +1057,7 @@ int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
r = color_table[j * 3 + 0];
g = color_table[j * 3 + 1];
b = color_table[j * 3 + 2];
st->codec->palctrl->palette[j] =
sc->palette[j] =
(r << 16) | (g << 8) | (b);
}
} else {
@ -1080,12 +1079,12 @@ int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
avio_r8(pb);
b = avio_r8(pb);
avio_r8(pb);
st->codec->palctrl->palette[j] =
sc->palette[j] =
(r << 16) | (g << 8) | (b);
}
}
}
st->codec->palctrl->palette_changed = 1;
sc->has_palette = 1;
}
} else if(st->codec->codec_type==AVMEDIA_TYPE_AUDIO) {
int bits_per_sample, flags;
@ -2433,6 +2432,17 @@ static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
ret = av_get_packet(sc->pb, pkt, sample->size);
if (ret < 0)
return ret;
if (sc->has_palette) {
uint8_t *pal;
pal = av_packet_new_side_data(pkt, AV_PKT_DATA_PALETTE, AVPALETTE_SIZE);
if (!pal) {
av_log(mov->fc, AV_LOG_ERROR, "Cannot append palette to packet\n");
} else {
memcpy(pal, sc->palette, AVPALETTE_SIZE);
sc->has_palette = 0;
}
}
#if CONFIG_DV_DEMUXER
if (mov->dv_demux && sc->dv_audio_container) {
dv_produce_packet(mov->dv_demux, pkt, pkt->data, pkt->size);