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[34.83.118.50]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-7325ce41326sm8896089b3a.93.2025.02.19.01.59.32 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Wed, 19 Feb 2025 01:59:32 -0800 (PST) Message-Id: From: ffmpegagent Date: Wed, 19 Feb 2025 09:59:29 +0000 Fcc: Sent MIME-Version: 1.0 To: ffmpeg-devel@ffmpeg.org Subject: [FFmpeg-devel] [PATCH 0/3] print_graphs: Complete Filtergraph Printing X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches Cc: softworkz Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Archived-At: List-Archive: List-Post: The key benefits are: * Different to other graph printing methods, this is outputting: * all graphs with runtime state (including auto-inserted filters) * each graph with its inputs and outputs * all filters with their in- and output pads * all connections between all input- and output pads * for each connection: * the runtime-negotiated format and media type * the hw context * if video hw context, both: hw pixfmt + sw pixfmt * Output can either be printed to stdout or written to specified file * Output is machine-readable * Use the same output implementation as ffprobe, supporting multiple formats (this commit includes only the default and JSON writers) Right after filtergraph configuration, the connection details are often not complete yet. On the other side, when waiting too long or if an error occurs somewhere, the graph info might never be printed. Experience has shown, that the most suitable and realiable point in time for printing graph information is right before cleanup. Due to the changes for multi-threading, this is no longer doable as easy as before, so the following method is used: Each filtergraph initiates its own graph printing short before cleanup into a buffer. Before final cleanup in ffmpeg.c, the outputs from the individual graphs are pieced together for the actual output to file or console. (the structure according to the output format remains valid) Example output: https://gist.github.com/softworkz/2a9e8699b288f5d40fa381c2a496e165 softworkz (3): fftools/ffmpeg_filter: Move some declaration to new header file fftools/ffmpeg_graphprint: Add options for filtergraph printing fftools: Enable filtergraph printing and update docs doc/ffmpeg.texi | 10 + fftools/Makefile | 1 + fftools/ffmpeg.c | 4 + fftools/ffmpeg.h | 3 + fftools/ffmpeg_filter.c | 193 +----- fftools/ffmpeg_filter.h | 232 +++++++ fftools/ffmpeg_graphprint.c | 1152 +++++++++++++++++++++++++++++++++++ fftools/ffmpeg_graphprint.h | 224 +++++++ fftools/ffmpeg_opt.c | 12 + 9 files changed, 1644 insertions(+), 187 deletions(-) create mode 100644 fftools/ffmpeg_filter.h create mode 100644 fftools/ffmpeg_graphprint.c create mode 100644 fftools/ffmpeg_graphprint.h base-commit: e18f87ed9f9f61c980420b315dc8ecb308831bc5 Published-As: https://github.com/ffstaging/FFmpeg/releases/tag/pr-ffstaging-52%2Fsoftworkz%2Fsubmit_print_graphs5-v1 Fetch-It-Via: git fetch https://github.com/ffstaging/FFmpeg pr-ffstaging-52/softworkz/submit_print_graphs5-v1 Pull-Request: https://github.com/ffstaging/FFmpeg/pull/52 -- ffmpeg-codebot _______________________________________________ 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".