* [FFmpeg-devel] [PATCH v3 1/4] avformat/imf: open resources only when first needed
@ 2022-02-03 4:07 pal
2022-02-03 4:07 ` [FFmpeg-devel] [PATCH v3 2/4] avformat/imf: fix missing error reporting when opening resources pal
` (2 more replies)
0 siblings, 3 replies; 6+ messages in thread
From: pal @ 2022-02-03 4:07 UTC (permalink / raw)
To: ffmpeg-devel; +Cc: Pierre-Anthony Lemieux
From: Pierre-Anthony Lemieux <pal@palemieux.com>
IMF CPLs can reference thousands of files, which can result in system limits
for the number of open files to be exceeded. The following patch opens and
closes files as needed.
Addresses https://trac.ffmpeg.org/ticket/9623
---
libavformat/imfdec.c | 15 ++++++++-------
1 file changed, 8 insertions(+), 7 deletions(-)
diff --git a/libavformat/imfdec.c b/libavformat/imfdec.c
index d67c9b8898..e6a1020ecc 100644
--- a/libavformat/imfdec.c
+++ b/libavformat/imfdec.c
@@ -103,10 +103,11 @@ typedef struct IMFVirtualTrackPlaybackCtx {
int32_t index; /**< Track index in playlist */
AVRational current_timestamp; /**< Current temporal position */
AVRational duration; /**< Overall duration */
- uint32_t resource_count; /**< Number of resources */
+ uint32_t resource_count; /**< Number of resources (<= INT32_MAX) */
unsigned int resources_alloc_sz; /**< Size of the buffer holding the resource */
IMFVirtualTrackResourcePlaybackCtx *resources; /**< Buffer holding the resources */
- uint32_t current_resource_index; /**< Current resource */
+ int32_t current_resource_index; /**< Index of the current resource in resources,
+ or < 0 if a current resource has yet to be selected */
int64_t last_pts; /**< Last timestamp */
} IMFVirtualTrackPlaybackCtx;
@@ -435,7 +436,6 @@ static int open_track_file_resource(AVFormatContext *s,
IMFContext *c = s->priv_data;
IMFAssetLocator *asset_locator;
void *tmp;
- int ret;
asset_locator = find_asset_map_locator(&c->asset_locator_map, track_file_resource->track_file_uuid);
if (!asset_locator) {
@@ -452,7 +452,7 @@ static int open_track_file_resource(AVFormatContext *s,
UID_ARG(asset_locator->uuid),
asset_locator->absolute_uri);
- if (track->resource_count > UINT32_MAX - track_file_resource->base.repeat_count
+ if (track->resource_count > INT32_MAX - track_file_resource->base.repeat_count
|| (track->resource_count + track_file_resource->base.repeat_count)
> INT_MAX / sizeof(IMFVirtualTrackResourcePlaybackCtx))
return AVERROR(ENOMEM);
@@ -470,8 +470,6 @@ static int open_track_file_resource(AVFormatContext *s,
vt_ctx.locator = asset_locator;
vt_ctx.resource = track_file_resource;
vt_ctx.ctx = NULL;
- if ((ret = open_track_resource_context(s, &vt_ctx)) != 0)
- return ret;
track->resources[track->resource_count++] = vt_ctx;
track->duration = av_add_q(track->duration,
av_make_q((int)track_file_resource->base.duration
@@ -501,6 +499,7 @@ static int open_virtual_track(AVFormatContext *s,
if (!(track = av_mallocz(sizeof(IMFVirtualTrackPlaybackCtx))))
return AVERROR(ENOMEM);
+ track->current_resource_index = -1;
track->index = track_index;
track->duration = av_make_q(0, 1);
@@ -551,6 +550,7 @@ static int set_context_streams_from_tracks(AVFormatContext *s)
AVStream *first_resource_stream;
/* Open the first resource of the track to get stream information */
+ open_track_resource_context(s, &c->tracks[i]->resources[0]);
first_resource_stream = c->tracks[i]->resources[0].ctx->streams[0];
av_log(s, AV_LOG_DEBUG, "Open the first resource of track %d\n", c->tracks[i]->index);
@@ -741,7 +741,8 @@ static IMFVirtualTrackResourcePlaybackCtx *get_resource_context_for_timestamp(AV
track->index);
if (open_track_resource_context(s, &(track->resources[i])) != 0)
return NULL;
- avformat_close_input(&(track->resources[track->current_resource_index].ctx));
+ if (track->current_resource_index > 0)
+ avformat_close_input(&track->resources[track->current_resource_index].ctx);
track->current_resource_index = i;
}
--
2.17.1
_______________________________________________
ffmpeg-devel mailing list
ffmpeg-devel@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
To unsubscribe, visit link above, or email
ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
^ permalink raw reply [flat|nested] 6+ messages in thread
* [FFmpeg-devel] [PATCH v3 2/4] avformat/imf: fix missing error reporting when opening resources
2022-02-03 4:07 [FFmpeg-devel] [PATCH v3 1/4] avformat/imf: open resources only when first needed pal
@ 2022-02-03 4:07 ` pal
2022-02-16 11:44 ` Zane van Iperen
2022-02-03 4:07 ` [FFmpeg-devel] [PATCH v3 3/4] avformat/imf: fix packet pts, dts and muxing pal
2022-02-03 4:07 ` [FFmpeg-devel] [PATCH v3 4/4] avformat/imf: document IMFVirtualTrackResourcePlaybackCtx pal
2 siblings, 1 reply; 6+ messages in thread
From: pal @ 2022-02-03 4:07 UTC (permalink / raw)
To: ffmpeg-devel; +Cc: Pierre-Anthony Lemieux
From: Pierre-Anthony Lemieux <pal@palemieux.com>
---
libavformat/imfdec.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/libavformat/imfdec.c b/libavformat/imfdec.c
index e6a1020ecc..658ddc40f2 100644
--- a/libavformat/imfdec.c
+++ b/libavformat/imfdec.c
@@ -550,7 +550,9 @@ static int set_context_streams_from_tracks(AVFormatContext *s)
AVStream *first_resource_stream;
/* Open the first resource of the track to get stream information */
- open_track_resource_context(s, &c->tracks[i]->resources[0]);
+ ret = open_track_resource_context(s, &c->tracks[i]->resources[0]);
+ if (ret)
+ return ret;
first_resource_stream = c->tracks[i]->resources[0].ctx->streams[0];
av_log(s, AV_LOG_DEBUG, "Open the first resource of track %d\n", c->tracks[i]->index);
--
2.17.1
_______________________________________________
ffmpeg-devel mailing list
ffmpeg-devel@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
To unsubscribe, visit link above, or email
ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
^ permalink raw reply [flat|nested] 6+ messages in thread
* [FFmpeg-devel] [PATCH v3 3/4] avformat/imf: fix packet pts, dts and muxing
2022-02-03 4:07 [FFmpeg-devel] [PATCH v3 1/4] avformat/imf: open resources only when first needed pal
2022-02-03 4:07 ` [FFmpeg-devel] [PATCH v3 2/4] avformat/imf: fix missing error reporting when opening resources pal
@ 2022-02-03 4:07 ` pal
2022-02-03 4:07 ` [FFmpeg-devel] [PATCH v3 4/4] avformat/imf: document IMFVirtualTrackResourcePlaybackCtx pal
2 siblings, 0 replies; 6+ messages in thread
From: pal @ 2022-02-03 4:07 UTC (permalink / raw)
To: ffmpeg-devel; +Cc: Pierre-Anthony Lemieux
From: Pierre-Anthony Lemieux <pal@palemieux.com>
The IMF demuxer does not set the DTS and PTS of packets accurately in all
scenarios. Moreover, audio packets are not trimmed when they exceed the
duration of the underlying resource.
imf-cpl-with-repeat FATE ref file is regenerated.
Addresses https://trac.ffmpeg.org/ticket/9611
---
libavformat/imfdec.c | 263 +++++++++++++++++++----------
tests/ref/fate/imf-cpl-with-repeat | 20 +--
2 files changed, 181 insertions(+), 102 deletions(-)
diff --git a/libavformat/imfdec.c b/libavformat/imfdec.c
index 658ddc40f2..5be4411cb1 100644
--- a/libavformat/imfdec.c
+++ b/libavformat/imfdec.c
@@ -65,8 +65,10 @@
#include "avio_internal.h"
#include "imf.h"
#include "internal.h"
+#include "libavcodec/packet.h"
#include "libavutil/avstring.h"
#include "libavutil/bprint.h"
+#include "libavutil/intreadwrite.h"
#include "libavutil/opt.h"
#include "mxf.h"
#include "url.h"
@@ -97,6 +99,9 @@ typedef struct IMFVirtualTrackResourcePlaybackCtx {
IMFAssetLocator *locator;
FFIMFTrackFileResource *resource;
AVFormatContext *ctx;
+ AVRational start_time;
+ AVRational end_time;
+ AVRational ts_offset;
} IMFVirtualTrackResourcePlaybackCtx;
typedef struct IMFVirtualTrackPlaybackCtx {
@@ -108,7 +113,6 @@ typedef struct IMFVirtualTrackPlaybackCtx {
IMFVirtualTrackResourcePlaybackCtx *resources; /**< Buffer holding the resources */
int32_t current_resource_index; /**< Index of the current resource in resources,
or < 0 if a current resource has yet to be selected */
- int64_t last_pts; /**< Last timestamp */
} IMFVirtualTrackPlaybackCtx;
typedef struct IMFContext {
@@ -342,6 +346,7 @@ static int open_track_resource_context(AVFormatContext *s,
int ret = 0;
int64_t entry_point;
AVDictionary *opts = NULL;
+ AVStream *st;
if (track_resource->ctx) {
av_log(s,
@@ -383,23 +388,28 @@ static int open_track_resource_context(AVFormatContext *s,
}
av_dict_free(&opts);
- /* Compare the source timebase to the resource edit rate,
- * considering the first stream of the source file
- */
- if (av_cmp_q(track_resource->ctx->streams[0]->time_base,
- av_inv_q(track_resource->resource->base.edit_rate)))
+ /* make sure there is only one stream in the file */
+
+ if (track_resource->ctx->nb_streams != 1) {
+ ret = AVERROR_INVALIDDATA;
+ goto cleanup;
+ }
+
+ st = track_resource->ctx->streams[0];
+
+ /* Warn if the resource time base does not match the file time base */
+ if (av_cmp_q(st->time_base, av_inv_q(track_resource->resource->base.edit_rate)))
av_log(s,
AV_LOG_WARNING,
- "Incoherent source stream timebase %d/%d regarding resource edit rate: %d/%d",
- track_resource->ctx->streams[0]->time_base.num,
- track_resource->ctx->streams[0]->time_base.den,
+ "Incoherent source stream timebase " AVRATIONAL_FORMAT
+ "regarding resource edit rate: " AVRATIONAL_FORMAT,
+ st->time_base.num,
+ st->time_base.den,
track_resource->resource->base.edit_rate.den,
track_resource->resource->base.edit_rate.num);
- entry_point = (int64_t)track_resource->resource->base.entry_point
- * track_resource->resource->base.edit_rate.den
- * AV_TIME_BASE
- / track_resource->resource->base.edit_rate.num;
+ entry_point = av_rescale_q(track_resource->resource->base.entry_point, st->time_base,
+ av_inv_q(track_resource->resource->base.edit_rate));
if (entry_point) {
av_log(s,
@@ -407,7 +417,7 @@ static int open_track_resource_context(AVFormatContext *s,
"Seek at resource %s entry point: %" PRIu32 "\n",
track_resource->locator->absolute_uri,
track_resource->resource->base.entry_point);
- ret = avformat_seek_file(track_resource->ctx, -1, entry_point, entry_point, entry_point, 0);
+ ret = avformat_seek_file(track_resource->ctx, 0, entry_point, entry_point, entry_point, 0);
if (ret < 0) {
av_log(s,
AV_LOG_ERROR,
@@ -470,11 +480,16 @@ static int open_track_file_resource(AVFormatContext *s,
vt_ctx.locator = asset_locator;
vt_ctx.resource = track_file_resource;
vt_ctx.ctx = NULL;
- track->resources[track->resource_count++] = vt_ctx;
- track->duration = av_add_q(track->duration,
+ vt_ctx.start_time = track->duration;
+ vt_ctx.ts_offset = av_sub_q(vt_ctx.start_time,
+ av_div_q(av_make_q((int)track_file_resource->base.entry_point, 1),
+ track_file_resource->base.edit_rate));
+ vt_ctx.end_time = av_add_q(track->duration,
av_make_q((int)track_file_resource->base.duration
* track_file_resource->base.edit_rate.den,
track_file_resource->base.edit_rate.num));
+ track->resources[track->resource_count++] = vt_ctx;
+ track->duration = vt_ctx.end_time;
}
return 0;
@@ -701,11 +716,14 @@ static IMFVirtualTrackPlaybackCtx *get_next_track_with_minimum_timestamp(AVForma
return track;
}
-static IMFVirtualTrackResourcePlaybackCtx *get_resource_context_for_timestamp(AVFormatContext *s,
- IMFVirtualTrackPlaybackCtx *track)
+static int get_resource_context_for_timestamp(AVFormatContext *s, IMFVirtualTrackPlaybackCtx *track, IMFVirtualTrackResourcePlaybackCtx **resource)
{
- AVRational edit_unit_duration = av_inv_q(track->resources[0].resource->base.edit_rate);
- AVRational cumulated_duration = av_make_q(0, edit_unit_duration.den);
+ *resource = NULL;
+
+ if (av_cmp_q(track->current_timestamp, track->duration) >= 0) {
+ av_log(s, AV_LOG_DEBUG, "Reached the end of the virtual track\n");
+ return AVERROR_EOF;
+ }
av_log(s,
AV_LOG_DEBUG,
@@ -714,119 +732,180 @@ static IMFVirtualTrackResourcePlaybackCtx *get_resource_context_for_timestamp(AV
av_q2d(track->current_timestamp),
av_q2d(track->duration));
for (uint32_t i = 0; i < track->resource_count; ++i) {
- cumulated_duration = av_add_q(cumulated_duration,
- av_make_q((int)track->resources[i].resource->base.duration
- * edit_unit_duration.num,
- edit_unit_duration.den));
- if (av_cmp_q(av_add_q(track->current_timestamp, edit_unit_duration), cumulated_duration) <= 0) {
+ if (av_cmp_q(track->resources[i].end_time, track->current_timestamp) > 0) {
av_log(s,
AV_LOG_DEBUG,
- "Found resource %d in track %d to read for timestamp %lf "
- "(on cumulated=%lf): entry=%" PRIu32
+ "Found resource %d in track %d to read at timestamp %lf: "
+ "entry=%" PRIu32
", duration=%" PRIu32
- ", editrate=" AVRATIONAL_FORMAT
- " | edit_unit_duration=%lf\n",
+ ", editrate=" AVRATIONAL_FORMAT,
i,
track->index,
av_q2d(track->current_timestamp),
- av_q2d(cumulated_duration),
track->resources[i].resource->base.entry_point,
track->resources[i].resource->base.duration,
- AVRATIONAL_ARG(track->resources[i].resource->base.edit_rate),
- av_q2d(edit_unit_duration));
+ AVRATIONAL_ARG(track->resources[i].resource->base.edit_rate));
if (track->current_resource_index != i) {
+ int ret;
+
av_log(s,
AV_LOG_DEBUG,
"Switch resource on track %d: re-open context\n",
track->index);
- if (open_track_resource_context(s, &(track->resources[i])) != 0)
- return NULL;
+
+ ret = open_track_resource_context(s, &(track->resources[i]));
+ if (ret != 0)
+ return ret;
if (track->current_resource_index > 0)
avformat_close_input(&track->resources[track->current_resource_index].ctx);
track->current_resource_index = i;
}
- return &(track->resources[track->current_resource_index]);
+ *resource = &(track->resources[track->current_resource_index]);
+ return 0;
}
}
- return NULL;
+
+ av_log(s, AV_LOG_ERROR, "Could not find IMF track resource to read\n");
+ return AVERROR_STREAM_NOT_FOUND;
+}
+
+static int imf_time_to_ts(int64_t *ts, AVRational t, AVRational time_base)
+{
+ int dst_num;
+ int dst_den;
+ AVRational r;
+
+ r = av_div_q(t, time_base);
+
+ if ((av_reduce(&dst_num, &dst_den, r.num, r.den, INT64_MAX) != 1))
+ return 1;
+
+ if (dst_den != 1)
+ return 1;
+
+ *ts = dst_num;
+
+ return 0;
}
static int imf_read_packet(AVFormatContext *s, AVPacket *pkt)
{
- IMFContext *c = s->priv_data;
- IMFVirtualTrackResourcePlaybackCtx *resource_to_read = NULL;
- AVRational edit_unit_duration;
+ IMFVirtualTrackResourcePlaybackCtx *resource = NULL;
int ret = 0;
IMFVirtualTrackPlaybackCtx *track;
- FFStream *track_stream;
+ int64_t delta_ts;
+ AVStream *st;
+ AVRational next_timestamp;
track = get_next_track_with_minimum_timestamp(s);
- if (av_cmp_q(track->current_timestamp, track->duration) == 0)
- return AVERROR_EOF;
+ ret = get_resource_context_for_timestamp(s, track, &resource);
+ if (ret)
+ return ret;
- resource_to_read = get_resource_context_for_timestamp(s, track);
+ ret = av_read_frame(resource->ctx, pkt);
+ if (ret) {
+ av_log(s, AV_LOG_ERROR, "Failed to read frame\n");
+ return ret;
+ }
- if (!resource_to_read) {
- edit_unit_duration
- = av_inv_q(track->resources[track->current_resource_index].resource->base.edit_rate);
+ av_log(s, AV_LOG_DEBUG, "Got packet: pts=%" PRId64 ", dts=%" PRId64
+ ", duration=%" PRId64 ", stream_index=%d, pos=%" PRId64
+ ", time_base=" AVRATIONAL_FORMAT "\n", pkt->pts, pkt->dts, pkt->duration,
+ pkt->stream_index, pkt->pos, pkt->time_base.num, pkt->time_base.den);
- if (av_cmp_q(av_add_q(track->current_timestamp, edit_unit_duration), track->duration) > 0)
- return AVERROR_EOF;
+ /* IMF resources contain only one stream */
- av_log(s, AV_LOG_ERROR, "Could not find IMF track resource to read\n");
- return AVERROR_STREAM_NOT_FOUND;
+ if (pkt->stream_index != 0)
+ return AVERROR_INVALIDDATA;
+ st = resource->ctx->streams[0];
+
+ pkt->stream_index = track->index;
+
+ /* adjust the packet PTS and DTS based on the temporal position of the resource within the timeline */
+
+ ret = imf_time_to_ts(&delta_ts, resource->ts_offset, st->time_base);
+
+ if (!ret) {
+ if (pkt->pts != AV_NOPTS_VALUE)
+ pkt->pts += delta_ts;
+ if (pkt->dts != AV_NOPTS_VALUE)
+ pkt->dts += delta_ts;
+ } else {
+ av_log(s, AV_LOG_WARNING, "Incoherent time stamp " AVRATIONAL_FORMAT " for time base " AVRATIONAL_FORMAT,
+ resource->ts_offset.num, resource->ts_offset.den, pkt->time_base.num,
+ pkt->time_base.den);
}
- while (!ff_check_interrupt(c->interrupt_callback) && !ret) {
- ret = av_read_frame(resource_to_read->ctx, pkt);
- av_log(s,
- AV_LOG_DEBUG,
- "Got packet: pts=%" PRId64
- ", dts=%" PRId64
- ", duration=%" PRId64
- ", stream_index=%d, pos=%" PRId64
- "\n",
- pkt->pts,
- pkt->dts,
- pkt->duration,
- pkt->stream_index,
- pkt->pos);
-
- track_stream = ffstream(s->streams[track->index]);
- if (ret >= 0) {
- /* Update packet info from track */
- if (pkt->dts < track_stream->cur_dts && track->last_pts > 0)
- pkt->dts = track_stream->cur_dts;
-
- pkt->pts = track->last_pts;
- pkt->dts = pkt->dts
- - (int64_t)track->resources[track->current_resource_index].resource->base.entry_point;
- pkt->stream_index = track->index;
-
- /* Update track cursors */
- track->current_timestamp
- = av_add_q(track->current_timestamp,
- av_make_q((int)pkt->duration
- * resource_to_read->ctx->streams[0]->time_base.num,
- resource_to_read->ctx->streams[0]->time_base.den));
- track->last_pts += pkt->duration;
+ /* advance the track timestamp by the packet duration */
- return 0;
- } else if (ret != AVERROR_EOF) {
- av_log(s,
- AV_LOG_ERROR,
- "Could not get packet from track %d: %s\n",
- track->index,
- av_err2str(ret));
- return ret;
+ next_timestamp = av_add_q(track->current_timestamp,
+ av_mul_q(av_make_q((int)pkt->duration, 1), st->time_base));
+
+ /* if necessary, clamp the next timestamp to the end of the current resource */
+
+ if (av_cmp_q(next_timestamp, resource->end_time) > 0) {
+
+ int64_t new_pkt_dur;
+
+ /* shrink the packet duration */
+
+ ret = imf_time_to_ts(&new_pkt_dur,
+ av_sub_q(resource->end_time, track->current_timestamp),
+ st->time_base);
+
+ if (!ret)
+ pkt->duration = new_pkt_dur;
+ else
+ av_log(s, AV_LOG_WARNING, "Incoherent time base in packet duration calculation");
+
+ /* shrink the packet itself for audio essence */
+
+ if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
+
+ if (st->codecpar->codec_id == AV_CODEC_ID_PCM_S24LE) {
+ /* AV_CODEC_ID_PCM_S24LE is the only PCM format supported in IMF */
+ /* in this case, explicitly shrink the packet */
+
+ int bytes_per_sample = av_get_exact_bits_per_sample(st->codecpar->codec_id) >> 3;
+ int64_t nbsamples = av_rescale_q(pkt->duration,
+ st->time_base,
+ av_make_q(1, st->codecpar->sample_rate));
+ av_shrink_packet(pkt, nbsamples * st->codecpar->channels * bytes_per_sample);
+
+ } else {
+ /* in all other cases, use side data to skip samples */
+ int64_t skip_samples;
+
+ ret = imf_time_to_ts(&skip_samples,
+ av_sub_q(next_timestamp, resource->end_time),
+ av_make_q(1, st->codecpar->sample_rate));
+
+ if (ret || skip_samples < 0 || skip_samples > UINT32_MAX) {
+ av_log(s, AV_LOG_WARNING, "Cannot skip audio samples");
+ } else {
+ uint8_t *side_data = av_packet_new_side_data(pkt, AV_PKT_DATA_SKIP_SAMPLES, 10);
+ if (!side_data)
+ return AVERROR(ENOMEM);
+
+ AV_WL32(side_data + 4, skip_samples); /* skip from end of this packet */
+ side_data[6] = 1; /* reason for end is convergence */
+ }
+ }
+
+ next_timestamp = resource->end_time;
+
+ } else {
+ av_log(s, AV_LOG_WARNING, "Non-audio packet duration reduced");
}
}
- return AVERROR_EOF;
+ track->current_timestamp = next_timestamp;
+
+ return 0;
}
static int imf_close(AVFormatContext *s)
diff --git a/tests/ref/fate/imf-cpl-with-repeat b/tests/ref/fate/imf-cpl-with-repeat
index fe3106d5c6..e5b3992d04 100644
--- a/tests/ref/fate/imf-cpl-with-repeat
+++ b/tests/ref/fate/imf-cpl-with-repeat
@@ -34,13 +34,13 @@
0, 28, 28, 1, 1964, 0x106d867a
0, 29, 29, 1, 1964, 0x106d867a
0, 30, 30, 1, 1964, 0x106d867a
-0, 30, 31, 1, 2068, 0xd411c582
-0, 30, 32, 1, 2520, 0x7b539dfc
-0, 30, 33, 1, 1846, 0x9d184658
-0, 30, 34, 1, 2475, 0x2967a123
-0, 30, 35, 1, 2540, 0xdc61ad87
-0, 30, 36, 1, 2214, 0xa7da105f
-0, 30, 37, 1, 2486, 0xa68d89b4
-0, 30, 38, 1, 2615, 0xbc35d5ad
-0, 30, 39, 1, 2150, 0x643aea98
-0, 30, 40, 1, 2628, 0x2880c4ad
+0, 31, 31, 1, 2068, 0xd411c582
+0, 32, 32, 1, 2520, 0x7b539dfc
+0, 33, 33, 1, 1846, 0x9d184658
+0, 34, 34, 1, 2475, 0x2967a123
+0, 35, 35, 1, 2540, 0xdc61ad87
+0, 36, 36, 1, 2214, 0xa7da105f
+0, 37, 37, 1, 2486, 0xa68d89b4
+0, 38, 38, 1, 2615, 0xbc35d5ad
+0, 39, 39, 1, 2150, 0x643aea98
+0, 40, 40, 1, 2628, 0x2880c4ad
--
2.17.1
_______________________________________________
ffmpeg-devel mailing list
ffmpeg-devel@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
To unsubscribe, visit link above, or email
ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
^ permalink raw reply [flat|nested] 6+ messages in thread
* [FFmpeg-devel] [PATCH v3 4/4] avformat/imf: document IMFVirtualTrackResourcePlaybackCtx
2022-02-03 4:07 [FFmpeg-devel] [PATCH v3 1/4] avformat/imf: open resources only when first needed pal
2022-02-03 4:07 ` [FFmpeg-devel] [PATCH v3 2/4] avformat/imf: fix missing error reporting when opening resources pal
2022-02-03 4:07 ` [FFmpeg-devel] [PATCH v3 3/4] avformat/imf: fix packet pts, dts and muxing pal
@ 2022-02-03 4:07 ` pal
2 siblings, 0 replies; 6+ messages in thread
From: pal @ 2022-02-03 4:07 UTC (permalink / raw)
To: ffmpeg-devel; +Cc: Pierre-Anthony Lemieux
From: Pierre-Anthony Lemieux <pal@palemieux.com>
---
libavformat/imfdec.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/libavformat/imfdec.c b/libavformat/imfdec.c
index 5be4411cb1..02e7bcc33f 100644
--- a/libavformat/imfdec.c
+++ b/libavformat/imfdec.c
@@ -96,12 +96,12 @@ typedef struct IMFAssetLocatorMap {
} IMFAssetLocatorMap;
typedef struct IMFVirtualTrackResourcePlaybackCtx {
- IMFAssetLocator *locator;
- FFIMFTrackFileResource *resource;
- AVFormatContext *ctx;
- AVRational start_time;
- AVRational end_time;
- AVRational ts_offset;
+ IMFAssetLocator *locator; /**< Location of the resource */
+ FFIMFTrackFileResource *resource; /**< Underlying IMF CPL resource */
+ AVFormatContext *ctx; /**< Context associated with the resource */
+ AVRational start_time; /**< inclusive start time of the resource on the CPL timeline (s) */
+ AVRational end_time; /**< exclusive end time of the resource on the CPL timeline (s) */
+ AVRational ts_offset; /**< start_time minus the entry point into the resource (s) */
} IMFVirtualTrackResourcePlaybackCtx;
typedef struct IMFVirtualTrackPlaybackCtx {
--
2.17.1
_______________________________________________
ffmpeg-devel mailing list
ffmpeg-devel@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
To unsubscribe, visit link above, or email
ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [FFmpeg-devel] [PATCH v3 2/4] avformat/imf: fix missing error reporting when opening resources
2022-02-03 4:07 ` [FFmpeg-devel] [PATCH v3 2/4] avformat/imf: fix missing error reporting when opening resources pal
@ 2022-02-16 11:44 ` Zane van Iperen
2022-02-16 16:54 ` Pierre-Anthony Lemieux
0 siblings, 1 reply; 6+ messages in thread
From: Zane van Iperen @ 2022-02-16 11:44 UTC (permalink / raw)
To: ffmpeg-devel
On 3/2/22 14:07, pal@sandflow.com wrote:
> From: Pierre-Anthony Lemieux <pal@palemieux.com>
>
> ---
> libavformat/imfdec.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/libavformat/imfdec.c b/libavformat/imfdec.c
> index e6a1020ecc..658ddc40f2 100644
> --- a/libavformat/imfdec.c
> +++ b/libavformat/imfdec.c
> @@ -550,7 +550,9 @@ static int set_context_streams_from_tracks(AVFormatContext *s)
> AVStream *first_resource_stream;
>
> /* Open the first resource of the track to get stream information */
> - open_track_resource_context(s, &c->tracks[i]->resources[0]);
> + ret = open_track_resource_context(s, &c->tracks[i]->resources[0]);
> + if (ret)
> + return ret;
> first_resource_stream = c->tracks[i]->resources[0].ctx->streams[0];
> av_log(s, AV_LOG_DEBUG, "Open the first resource of track %d\n", c->tracks[i]->index);
>
Can you please squash this into the previous patch?
The rest looks mostly okay.
_______________________________________________
ffmpeg-devel mailing list
ffmpeg-devel@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
To unsubscribe, visit link above, or email
ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [FFmpeg-devel] [PATCH v3 2/4] avformat/imf: fix missing error reporting when opening resources
2022-02-16 11:44 ` Zane van Iperen
@ 2022-02-16 16:54 ` Pierre-Anthony Lemieux
0 siblings, 0 replies; 6+ messages in thread
From: Pierre-Anthony Lemieux @ 2022-02-16 16:54 UTC (permalink / raw)
To: FFmpeg development discussions and patches
On Wed, Feb 16, 2022 at 3:45 AM Zane van Iperen <zane@zanevaniperen.com> wrote:
>
>
>
>
> On 3/2/22 14:07, pal@sandflow.com wrote:
> > From: Pierre-Anthony Lemieux <pal@palemieux.com>
> >
> > ---
> > libavformat/imfdec.c | 4 +++-
> > 1 file changed, 3 insertions(+), 1 deletion(-)
> >
> > diff --git a/libavformat/imfdec.c b/libavformat/imfdec.c
> > index e6a1020ecc..658ddc40f2 100644
> > --- a/libavformat/imfdec.c
> > +++ b/libavformat/imfdec.c
> > @@ -550,7 +550,9 @@ static int set_context_streams_from_tracks(AVFormatContext *s)
> > AVStream *first_resource_stream;
> >
> > /* Open the first resource of the track to get stream information */
> > - open_track_resource_context(s, &c->tracks[i]->resources[0]);
> > + ret = open_track_resource_context(s, &c->tracks[i]->resources[0]);
> > + if (ret)
> > + return ret;
> > first_resource_stream = c->tracks[i]->resources[0].ctx->streams[0];
> > av_log(s, AV_LOG_DEBUG, "Open the first resource of track %d\n", c->tracks[i]->index);
> >
>
> Can you please squash this into the previous patch?
Addressed by v4
>
> The rest looks mostly okay.
> _______________________________________________
> ffmpeg-devel mailing list
> ffmpeg-devel@ffmpeg.org
> https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>
> To unsubscribe, visit link above, or email
> ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
_______________________________________________
ffmpeg-devel mailing list
ffmpeg-devel@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
To unsubscribe, visit link above, or email
ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2022-02-16 16:55 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-02-03 4:07 [FFmpeg-devel] [PATCH v3 1/4] avformat/imf: open resources only when first needed pal
2022-02-03 4:07 ` [FFmpeg-devel] [PATCH v3 2/4] avformat/imf: fix missing error reporting when opening resources pal
2022-02-16 11:44 ` Zane van Iperen
2022-02-16 16:54 ` Pierre-Anthony Lemieux
2022-02-03 4:07 ` [FFmpeg-devel] [PATCH v3 3/4] avformat/imf: fix packet pts, dts and muxing pal
2022-02-03 4:07 ` [FFmpeg-devel] [PATCH v3 4/4] avformat/imf: document IMFVirtualTrackResourcePlaybackCtx pal
Git Inbox Mirror of the ffmpeg-devel mailing list - see https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
This inbox may be cloned and mirrored by anyone:
git clone --mirror https://master.gitmailbox.com/ffmpegdev/0 ffmpegdev/git/0.git
# If you have public-inbox 1.1+ installed, you may
# initialize and index your mirror using the following commands:
public-inbox-init -V2 ffmpegdev ffmpegdev/ https://master.gitmailbox.com/ffmpegdev \
ffmpegdev@gitmailbox.com
public-inbox-index ffmpegdev
Example config snippet for mirrors.
AGPL code for this site: git clone https://public-inbox.org/public-inbox.git