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mjpegdec: convert to receive_frame()

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This will be useful in the following commit.
This commit is contained in:
Anton Khirnov 2020-12-01 11:34:27 +01:00
parent 36237ac4ee
commit e9a2a87773
4 changed files with 80 additions and 44 deletions
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5
libavcodec/jpeglsdec.c
View File

@ -551,7 +551,8 @@ AVCodec ff_jpegls_decoder = {
.priv_data_size = sizeof(MJpegDecodeContext),
.init = ff_mjpeg_decode_init,
.close = ff_mjpeg_decode_end,
.decode = ff_mjpeg_decode_frame,
.receive_frame = ff_mjpeg_receive_frame,
.capabilities = AV_CODEC_CAP_DR1,
.caps_internal = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_INIT_CLEANUP,
.caps_internal = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_INIT_CLEANUP |
FF_CODEC_CAP_SETS_PKT_DTS,
};

77
libavcodec/mjpegdec.c
View File

@ -36,6 +36,7 @@
#include "avcodec.h"
#include "blockdsp.h"
#include "copy_block.h"
#include "decode.h"
#include "hwconfig.h"
#include "idctdsp.h"
#include "internal.h"
@ -158,6 +159,10 @@ av_cold int ff_mjpeg_decode_init(AVCodecContext *avctx)
s->picture_ptr = s->picture;
}
s->pkt = av_packet_alloc();
if (!s->pkt)
return AVERROR(ENOMEM);
s->avctx = avctx;
ff_blockdsp_init(&s->bdsp, avctx);
ff_hpeldsp_init(&s->hdsp, avctx->flags);
@ -2331,12 +2336,32 @@ static void reset_icc_profile(MJpegDecodeContext *s)
s->iccnum = 0;
}
int ff_mjpeg_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
AVPacket *avpkt)
static int mjpeg_get_packet(AVCodecContext *avctx)
{
MJpegDecodeContext *s = avctx->priv_data;
int ret;
av_packet_unref(s->pkt);
ret = ff_decode_get_packet(avctx, s->pkt);
if (ret < 0)
return ret;
#if CONFIG_SP5X_DECODER || CONFIG_AMV_DECODER
if (avctx->codec_id == AV_CODEC_ID_SP5X ||
avctx->codec_id == AV_CODEC_ID_AMV) {
ret = ff_sp5x_process_packet(avctx, s->pkt);
if (ret < 0)
return ret;
}
#endif
s->buf_size = s->pkt->size;
return 0;
}
int ff_mjpeg_receive_frame(AVCodecContext *avctx, AVFrame *frame)
{
AVFrame *frame = data;
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
MJpegDecodeContext *s = avctx->priv_data;
const uint8_t *buf_end, *buf_ptr;
const uint8_t *unescaped_buf_ptr;
@ -2347,8 +2372,6 @@ int ff_mjpeg_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
int ret = 0;
int is16bit;
s->buf_size = buf_size;
av_dict_free(&s->exif_metadata);
av_freep(&s->stereo3d);
s->adobe_transform = -1;
@ -2356,8 +2379,12 @@ int ff_mjpeg_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
if (s->iccnum != 0)
reset_icc_profile(s);
buf_ptr = buf;
buf_end = buf + buf_size;
ret = mjpeg_get_packet(avctx);
if (ret < 0)
return ret;
buf_ptr = s->pkt->data;
buf_end = s->pkt->data + s->pkt->size;
while (buf_ptr < buf_end) {
/* find start next marker */
start_code = ff_mjpeg_find_marker(s, &buf_ptr, buf_end,
@ -2369,7 +2396,7 @@ int ff_mjpeg_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
} else if (unescaped_buf_size > INT_MAX / 8) {
av_log(avctx, AV_LOG_ERROR,
"MJPEG packet 0x%x too big (%d/%d), corrupt data?\n",
start_code, unescaped_buf_size, buf_size);
start_code, unescaped_buf_size, s->pkt->size);
return AVERROR_INVALIDDATA;
}
av_log(avctx, AV_LOG_DEBUG, "marker=%x avail_size_in_buf=%"PTRDIFF_SPECIFIER"\n",
@ -2506,6 +2533,7 @@ eoi_parser:
}
if (avctx->skip_frame == AVDISCARD_ALL) {
s->got_picture = 0;
ret = AVERROR(EAGAIN);
goto the_end_no_picture;
}
if (s->avctx->hwaccel) {
@ -2517,9 +2545,11 @@ eoi_parser:
}
if ((ret = av_frame_ref(frame, s->picture_ptr)) < 0)
return ret;
*got_frame = 1;
s->got_picture = 0;
frame->pkt_dts = s->pkt->dts;
frame->best_effort_timestamp = s->pkt->pts;
if (!s->lossless) {
int qp = FFMAX3(s->qscale[0],
s->qscale[1],
@ -2528,7 +2558,7 @@ eoi_parser:
AVBufferRef *qp_table_buf = av_buffer_alloc(qpw);
if (qp_table_buf) {
memset(qp_table_buf->data, qp, qpw);
av_frame_set_qp_table(data, qp_table_buf, 0, FF_QSCALE_TYPE_MPEG1);
av_frame_set_qp_table(frame, qp_table_buf, 0, FF_QSCALE_TYPE_MPEG1);
}
if(avctx->debug & FF_DEBUG_QP)
@ -2769,7 +2799,7 @@ the_end:
}
if (s->stereo3d) {
AVStereo3D *stereo = av_stereo3d_create_side_data(data);
AVStereo3D *stereo = av_stereo3d_create_side_data(frame);
if (stereo) {
stereo->type = s->stereo3d->type;
stereo->flags = s->stereo3d->flags;
@ -2787,7 +2817,7 @@ the_end:
for (i = 0; i < s->iccnum; i++)
total_size += s->iccdatalens[i];
sd = av_frame_new_side_data(data, AV_FRAME_DATA_ICC_PROFILE, total_size);
sd = av_frame_new_side_data(frame, AV_FRAME_DATA_ICC_PROFILE, total_size);
if (!sd) {
av_log(s->avctx, AV_LOG_ERROR, "Could not allocate frame side data\n");
return AVERROR(ENOMEM);
@ -2800,14 +2830,16 @@ the_end:
}
}
av_dict_copy(&((AVFrame *) data)->metadata, s->exif_metadata, 0);
av_dict_copy(&frame->metadata, s->exif_metadata, 0);
av_dict_free(&s->exif_metadata);
ret = 0;
the_end_no_picture:
av_log(avctx, AV_LOG_DEBUG, "decode frame unused %"PTRDIFF_SPECIFIER" bytes\n",
buf_end - buf_ptr);
// return buf_end - buf_ptr;
return buf_ptr - buf;
return ret;
}
/* mxpeg may call the following function (with a blank MJpegDecodeContext)
@ -2827,6 +2859,8 @@ av_cold int ff_mjpeg_decode_end(AVCodecContext *avctx)
} else if (s->picture_ptr)
av_frame_unref(s->picture_ptr);
av_packet_free(&s->pkt);
av_freep(&s->buffer);
av_freep(&s->stereo3d);
av_freep(&s->ljpeg_buffer);
@ -2879,14 +2913,14 @@ AVCodec ff_mjpeg_decoder = {
.priv_data_size = sizeof(MJpegDecodeContext),
.init = ff_mjpeg_decode_init,
.close = ff_mjpeg_decode_end,
.decode = ff_mjpeg_decode_frame,
.receive_frame = ff_mjpeg_receive_frame,
.flush = decode_flush,
.capabilities = AV_CODEC_CAP_DR1,
.max_lowres = 3,
.priv_class = &mjpegdec_class,
.profiles = NULL_IF_CONFIG_SMALL(ff_mjpeg_profiles),
.caps_internal = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_INIT_CLEANUP |
FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM,
FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM | FF_CODEC_CAP_SETS_PKT_DTS,
.hw_configs = (const AVCodecHWConfigInternal*[]) {
#if CONFIG_MJPEG_NVDEC_HWACCEL
HWACCEL_NVDEC(mjpeg),
@ -2907,10 +2941,11 @@ AVCodec ff_thp_decoder = {
.priv_data_size = sizeof(MJpegDecodeContext),
.init = ff_mjpeg_decode_init,
.close = ff_mjpeg_decode_end,
.decode = ff_mjpeg_decode_frame,
.receive_frame = ff_mjpeg_receive_frame,
.flush = decode_flush,
.capabilities = AV_CODEC_CAP_DR1,
.max_lowres = 3,
.caps_internal = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_INIT_CLEANUP,
.caps_internal = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_INIT_CLEANUP |
FF_CODEC_CAP_SETS_PKT_DTS,
};
#endif

8
libavcodec/mjpegdec.h
View File

@ -49,6 +49,8 @@ typedef struct MJpegDecodeContext {
GetBitContext gb;
int buf_size;
AVPacket *pkt;
int start_code; /* current start code */
int buffer_size;
uint8_t *buffer;
@ -156,9 +158,7 @@ typedef struct MJpegDecodeContext {
int ff_mjpeg_decode_init(AVCodecContext *avctx);
int ff_mjpeg_decode_end(AVCodecContext *avctx);
int ff_mjpeg_decode_frame(AVCodecContext *avctx,
void *data, int *got_frame,
AVPacket *avpkt);
int ff_mjpeg_receive_frame(AVCodecContext *avctx, AVFrame *frame);
int ff_mjpeg_decode_dqt(MJpegDecodeContext *s);
int ff_mjpeg_decode_dht(MJpegDecodeContext *s);
int ff_mjpeg_decode_sof(MJpegDecodeContext *s);
@ -169,4 +169,6 @@ int ff_mjpeg_find_marker(MJpegDecodeContext *s,
const uint8_t **buf_ptr, const uint8_t *buf_end,
const uint8_t **unescaped_buf_ptr, int *unescaped_buf_size);
int ff_sp5x_process_packet(AVCodecContext *avctx, AVPacket *avpkt);
#endif /* AVCODEC_MJPEGDEC_H */

34
libavcodec/sp5xdec.c
View File

@ -30,14 +30,11 @@
#include "mjpegdec.h"
#include "sp5x.h"
static int sp5x_decode_frame(AVCodecContext *avctx,
void *data, int *got_frame,
AVPacket *avpkt)
int ff_sp5x_process_packet(AVCodecContext *avctx, AVPacket *avpkt)
{
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
AVPacket avpkt_recoded;
AVBufferRef *buf_recoded;
const int qscale = 5;
uint8_t *recoded;
int i = 0, j = 0;
@ -45,9 +42,10 @@ static int sp5x_decode_frame(AVCodecContext *avctx,
if (!avctx->width || !avctx->height)
return -1;
recoded = av_mallocz(buf_size + 1024);
if (!recoded)
buf_recoded = av_buffer_allocz(buf_size + 1024);
if (!buf_recoded)
return -1;
recoded = buf_recoded->data;
/* SOI */
recoded[j++] = 0xFF;
@ -84,14 +82,12 @@ static int sp5x_decode_frame(AVCodecContext *avctx,
recoded[j++] = 0xFF;
recoded[j++] = 0xD9;
av_init_packet(&avpkt_recoded);
avpkt_recoded.data = recoded;
avpkt_recoded.size = j;
i = ff_mjpeg_decode_frame(avctx, data, got_frame, &avpkt_recoded);
av_buffer_unref(&avpkt->buf);
avpkt->buf = buf_recoded;
avpkt->data = recoded;
avpkt->size = j;
av_free(recoded);
return i < 0 ? i : avpkt->size;
return 0;
}
#if CONFIG_SP5X_DECODER
@ -103,10 +99,11 @@ AVCodec ff_sp5x_decoder = {
.priv_data_size = sizeof(MJpegDecodeContext),
.init = ff_mjpeg_decode_init,
.close = ff_mjpeg_decode_end,
.decode = sp5x_decode_frame,
.receive_frame = ff_mjpeg_receive_frame,
.capabilities = AV_CODEC_CAP_DR1,
.max_lowres = 3,
.caps_internal = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_INIT_CLEANUP,
.caps_internal = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_INIT_CLEANUP |
FF_CODEC_CAP_SETS_PKT_DTS,
};
#endif
#if CONFIG_AMV_DECODER
@ -118,9 +115,10 @@ AVCodec ff_amv_decoder = {
.priv_data_size = sizeof(MJpegDecodeContext),
.init = ff_mjpeg_decode_init,
.close = ff_mjpeg_decode_end,
.decode = sp5x_decode_frame,
.receive_frame = ff_mjpeg_receive_frame,
.max_lowres = 3,
.capabilities = AV_CODEC_CAP_DR1,
.caps_internal = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_INIT_CLEANUP,
.caps_internal = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_INIT_CLEANUP |
FF_CODEC_CAP_SETS_PKT_DTS,
};
#endif